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• Microsoft Remote Desktop Error Code 0x207
• Microsoft Remote Desktop Error Code 0x516
• Microsoft Remote Desktop Error Code 0x104
• Microsoft Remote Desktop Error Code 0x3000066
• Microsoft Remote Desktop Error Code 0x704
• Microsoft Remote Desktop Mac Error Code 0x7

This article helps you understand the most common settings that are used to establish a Remote Desktop session in an enterprise environment, and provides troubleshooting information for Remote desktop disconnected errors.

Hold down the Option (Alt) key ⌥ and select Open Wireless Diagnostics from the Wi-Fi status menu. Enter your administrator name and password when prompted. Wireless Diagnostics begins analyzing your wireless environment. If the problem occurs intermittently, you can monitor the Wi-Fi connection. You can disable Network Level Authentication in the System Properties on the Remote tab by unchecking the options “Allow connection only from computers running Remote Desktop with Network Level Authentication (recommended)” (Windows 10 /8.1 or Windows Server 2012R2/2016). In Windows 7 (Windows Server 2008 R2), this option is called differently.

Applies to: Windows Server 2012 R2
Original KB number: 2477176

Note

This article is intended for use by support agents and IT professionals.

Remote Desktop Server

A Remote Desktop Session Host server is the server that hosts Windows-based programs or the full Windows desktop for Remote Desktop Services clients. Users can connect to an RD Session Host server to run programs, to save files, and to use network resources on that server. Users can access an RD Session Host server from within a corporate network or from the Internet.

Remote Desktop Session Host (RD Session Host) was formerly known as the Remote Desktop server role service, and Remote Desktop Session Host (RD Session Host) server was formerly known as Remote Desktop server.

Remote connections for administration

Remote Desktop supports two concurrent remote connections to the computer. You do not have to have Remote Desktop Services client access licenses (RDS CALs) for these connections.

To allow more than two administrative connections or multiple user connections, you must install the RD Session Host Role and have appropriate RDS CALs.

Symptom 1: Limited Remote Desktop session or Remote Desktop Services session connections

When you try to make a Remote Desktop Connection (RDC) to a remote computer or to a Remote Desktop server (Terminal Server) that is running Windows Server 2008 R2, you receive one of the following error messages:

Remote Desktop Disconnected.
This computer can't connect to the remote computer.
Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.

Also, you are limited in the number of users who can connect simultaneously to a Remote Desktop session or Remote Desktop Services session. A limited number of RDP connections can be caused by misconfigured Group Policy or RDP-TCP properties in Remote Desktop Services Configuration. By default, the connection is configured to allow an unlimited number of sessions to connect to the server.

Symptom 2: Port assignment conflict

You experience a port assignment conflict. This problem might indicate that another application on the Remote Desktop server is using the same TCP port as the Remote Desktop Protocol (RDP). The default port assigned to RDP is 3389.

Symptom 3: Incorrectly configured authentication and encryption settings

After a Remote Desktop server client loses the connection to a Remote Desktop server, you experience one of the following symptoms:

• You cannot make a connection by using RDP.
• The session on the Remote Desktop server does not transition to a disconnected state. Instead, it remains active even though the client is physically disconnected from the Remote Desktop server.

If the client logs back in to the same Remote Desktop server, a new session may be established, and the original session may remain active.

Also, you receive one of the following error messages:

• Error message 1

  Because of a security error, the client could not connect to the Terminal server. After making sure that you are logged on to the network, try connecting to the server again.

• Error message 2

  Remote desktop disconnected. Because of a security error, the client could not connect to the remote computer. Verify that you are logged onto the network and then try connecting again.

Symptom 4: License certificate corruption

Remote Desktop Services clients are repeatedly denied access to the Remote Desktop server. If you are using a Remote Desktop Services client to log on to the Remote Desktop server, you may receive one of the following error messages.

• Error message 1

  Because of a security error, the client could not connect to the Terminal server. After making sure that you are logged on to the network, try connecting to the server again.

• Error message 2

  Remote desktop disconnected. Because of a security error, the client could not connect to the remote computer. Verify that you are logged onto the network and then try connecting again.

• Error message 3

  Because of a security error, the client could not connect to the Terminal server. After making sure that you are logged on to the network, try connecting to the server again.
  Remote desktop disconnected. Because of a security error, the client could not connect to the remote computer. Verify that you are logged onto the network and then try connecting again.

Additionally, the following event ID messages may be logged in Event Viewer on the Remote Desktop server.

• Event message 1

• Event message 2

• Event message 3

• Event message 4

• Event message 5

Resolution for Symptom 1

To resolve this problem, use the following methods, as appropriate.

Verify Remote Desktop is enabled

1. Open the System item in Control Panel. To start the System tool, click Start, click Control Panel, click System, and then click OK.

2. Under Control Panel Home, click Remote settings.

3. Click the Remote tab.

4. Under Remote Desktop, select either of the available options, depending on your security requirements:

   • Allow connections from computers from computers running any version of Remote Desktop (less secure)

   • Allow connections from computers only from computers running Remote Desktop with Network Level Authentication (more secure)

If you select Don't allow connections to this computer on the Remote tab, no users will be able to connect remotely to this computer, even if they are members of the Remote Desktop Users group.

Verify Remote Desktop Services Limit number of connections policy

1. Start the Group Policy snap-in, and then open the Local Security Policy or the appropriate Group Policy.

2. Locate the following command:

   Local Computer Policy > Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections Limit number of connections

3. Click Enabled.

4. In the RD Maximum Connections allowed box, type the maximum number of connections that you want to allow, and then click OK.

Verify Remote Desktop Services RDP-TCP properties

Follow these steps, depending on your operating system version.

Setting via Remote Desktop Services Configuration

Configure the number of simultaneous remote connections allowed for a connection:

1. On the RD Session Host server, open Remote Desktop Session Host Configuration. To open Remote Desktop Session Host Configuration, click Start, point to Administrative Tools, point to Remote Desktop Services.

2. Under Connections, right-click the name of the connection, and then click Properties.

3. On the Network Adapter tab, click Maximum connections, enter the number of simultaneous remote connections that you want to allow for the connection, and then click OK.

4. If the Maximum connections option is selected and dimmed, the Limit number of connections Group Policy setting has been enabled and has been applied to the RD Session Host server.

Verify Remote Desktop Services Logon rights

Configure the Remote Desktop Users Group.

The Remote Desktop Users group on an RD Session Host server grants users and groups permission to remotely connect to an RD Session Host server. You can add users and groups to the Remote Desktop Users group by using the following tools:

• Local Users and Groups snap-in
• The Remote tab in the System Properties dialog box on an RD Session Host server
• Active Directory Users and Computers snap-in, if the RD Session Host server is installed on a domain controller

You can use the following procedure to add users and groups to the Remote Desktop Users group by using the Remote tab in the System Properties dialog box on an RD Session Host server.

Membership in the local Administrators group, or equivalent, on the RD Session Host server that you plan to configure, is the minimum required to complete this procedure.

Add users and groups to the Remote Desktop Users group by using the Remote tab

1. Start the System tool. To do this, click Start, click Control Panel, click the System icon, and then click OK.

2. Under Control Panel Home, click Remote settings.

3. On the Remote tab in the System Properties dialog box, click Select Users. Add the users or groups that have to connect to the RD Session Host server by using Remote Desktop.

Note

If you select the Don't allow connections to this computer option on the Remote tab, no users will be able to connect remotely to this computer, even if they are members of the Remote Desktop Users group.

Add users and groups to the Remote Desktop Users group by using Local Users and Groups snap-in

1. Click Start, click Administrative Tools, and then click Computer Management.
2. In the console tree, click the Local Users and Groups node.
3. In the details pane, double-click the Groups folder.
4. Double-click Remote Desktop Users, and then click Add.
5. In the Select Users dialog box, click Locations to specify the search location.
6. Click Object Types to specify the types of objects that you want to search for.
7. In the Enter the object names to select (examples) box, type the name you want to add.
8. Click Check Names.
9. When the name is located, click OK.

Note

• You can't connect to a computer that's asleep or hibernating, so make sure the settings for sleep and hibernation on the remote computer are set to Never. (Hibernation isn't available on all computers.) For information about making those changes, see Change, create, or delete a power plan (scheme).
• You can't use Remote Desktop Connection to connect to a computer using Windows 7 Starter, Windows 7 Home Basic, or Windows 7 Home Premium.
• Members of the local Administrators group can connect even if they are not listed.

Resolution for Symptom 2

Important

This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, seeHow to back up and restore the registry in Windows.

To resolve this problem, determine which application is using the same port as RDP. If the port assignment for that application cannot be changed, change the port assigned to RDP by changing the registry. After you change the registry, you must restart the Remote Desktop Services service. After you restart the Remote Desktop Services service, you should verify that the RDP port has been changed correctly.

Remote Desktop server listener availability

The listener component runs on the Remote Desktop server and is responsible for listening for and accepting new Remote Desktop Protocol (RDP) client connections, thereby allowing users to establish new remote sessions on the Remote Desktop server. There is a listener for each Remote Desktop Services connection that exists on the Remote Desktop server. Connections can be created and configured by using the Remote Desktop Services Configuration tool.

To perform these tasks, refer to the following sections.

Determine which application is using the same port as RDP

You can run the netstat tool to determine whether port 3389 (or the assigned RDP port) is being used by another application on the Remote Desktop server:

1. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK.
2. At the command prompt, type netstat -a -o and then press Enter.
3. Look for an entry for TCP port 3389 (or the assigned RDP port) with a status of Listening. This indicates another application is using this port. The PID (Process Identifier) of the process or service using that port appears under the PID column.

To determine which application is using port 3389 (or the assigned RDP port), use the tasklist command-line tool along with the PID information from the netstat tool:

1. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK.
2. Type tasklist /svc and then press Enter.
3. Look for an entry for the PID number that is associated with the port (from the netstat output). The services or processes that are associated with that PID appear on the right.

Change the port assigned to RDP

You should determine whether this application can use a different port. If you cannot change the application's port, you must change the port that is assigned to RDP.

Important

We recommend that you do not change the port that is assigned to RDP.

If you have to change the port assigned to RDP, you must change the registry. To do this, you must be a member of the local Administrators group, or you must have been granted the appropriate permissions.

To change the port that is assigned to RDP, follow these steps:

1. On the Remote Desktop server, open Registry Editor. To open Registry Editor, click Start, click Run, type regedit, and then click OK.

2. If the User Account Control dialog box appears, verify that the action it displays is what you want, and then click Continue.

3. Locate and then click the following registry subkey:

   HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlRemote Desktop serverWinStations

RDP-TCP is the default connection name. To change the port for a specific connection on the Remote Desktop server, select the connection under the WinStations key:

1. In the details pane, double-click the PortNumber registry entry.
2. Type the port number that you want to assign to RDP.
3. Click OK to save the change, and then close Registry Editor.

Restart the Remote Desktop Services service

For the RDP port assignment change to take effect, stop and start the Remote Desktop Services service. To do this, you must be a member of the local Administrators group, or you must have been granted the appropriate permissions.

To stop and start the Remote Desktop Services service, follow these steps:

1. On the Remote Desktop server, open the Services snap-in. To do this, click Start, point to Administrative Tools, and then click Services.

2. If the User Account Control dialog box appears, verify that the action it displays is what you want, and then click Continue.

3. In the Services pane, right-click Remote Desktop Services, and then click Restart.

4. If you are prompted to restart other services, click Yes.

5. Verify that the Status column for the Remote Desktop Services service displays a Started status.

Verify that the RDP port has changed

To verify that the RDP port assignment has been changed, use the netstat tool:

1. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK.

2. At the command prompt, type netstat -a then press Enter.

3. Look for an entry for the port number that you assigned to RDP. The port should appear in the list and have a status of Listening.

Important

Remote Desktop Connection and the Terminal server Web Client use port 3389, by default, to connect to a Remote Desktop server. If you change the RDP port on the Remote Desktop server, you will have to modify the port used by Remote Desktop Connection and the Remote Desktop server Web Client. For more information, see Change the listening port for Remote Desktop on your computer.

Verify that the listener on the Remote Desktop server is working

To verify that the listener on the Remote Desktop server is working correctly, use any of the following methods.

Note

RDP-TCP is the default connection name and 3389 is the default RDP port. Use the connection name and port number specific to your Remote Desktop server configuration.

• Method 1

  Use an RDP client, such as Remote Desktop Connection, to establish a remote connection to the Remote Desktop server.

• Method 2

  Use the qwinsta tool to view the listener status on the Remote Desktop server:

  1. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK.
  2. At the command prompt, type qwinsta, and then press Enter.
  3. The RDP-TCP session state should be Listen.

• Method 3

  Use the netstat tool to view the listener status on the Remote Desktop server:

  1. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK.
  2. At the command prompt, type netstat -a then press Enter.
  3. The entry for TCP port 3389 should be Listening.

• Method 4

  Use the telnet tool to connect to the RDP port on the Remote Desktop server:

  1. From another computer, click Start, click Run, type cmd, and then click OK.
  2. At the command prompt, type telnet <servername> 3389 , where <servername> is the name of the Remote Desktop server, and then press Enter.

  If telnet is successful, you receive the telnet screen and a cursor.

  If telnet is not successful, you receive the following error message:

  Connecting To servername... Could not open connection to the host, on port 3389: Connect failed

  The qwinsta, netstat, and telnet tools are also included in Windows XP and Windows Server 2003. You can also download and use other troubleshooting tools, such as Portqry.

Resolution for Symptom 3

To resolve the issue, configure authentication and encryption.

To configure authentication and encryption for a connection, follow these steps:

1. On the RD Session Host server, open Remote Desktop Session Host Configuration. To open Remote Desktop Session Host Configuration, click Start, point to Administrative Tools, point to Remote Desktop Services, and then click Remote Desktop Session Host Configuration.

2. Under Connections, right-click the name of the connection, and then click Properties.

3. In the Properties dialog box for the connection, on the General tab, in Security layer, select a security method.

4. In Encryption level, click the level that you want. You can select Low, Client Compatible, High, or FIPS Compliant. See Step 4 above for Windows Server 2003 for Security layer and Encryption level options.

Note

• To perform this procedure, you must be a member of the Administrators group on the local computer, or you must have been delegated the appropriate authority. If the computer is joined to a domain, members of the Domain Admins group might be able to perform this procedure. As a security best practice, consider using Run as to perform this procedure.
• To open Remote Desktop Services Configuration, click Start, click Control Panel, double-click Administrative Tools, and then double-click Remote Desktop Services Configuration.
• Any encryption level settings that you configure in Group Policy override the configuration that you set by using the Remote Desktop Services Configuration tool. Also, if you enable the System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing Group Policy setting, this setting overrides the Set client connection encryption level Group Policy setting.
• When you change the encryption level, the new encryption level takes effect the next time a user logs on. If you require multiple levels of encryption on one server, install multiple network adapters and configure each adapter separately.
• To verify that certificate has a corresponding private key, in Remote Desktop Services Configuration, right-click the connection for which you want to view the certificate, click the General tab, click Edit, click the certificate that you want to view, and then click View Certificate. At the bottom of the General tab, the statement, You have a private key that corresponds to this certificate, should appear. You can also view this information by using the Certificates snap-in.
• The FIPS compliant setting (the System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing setting in Group Policy or the FIPS Compliant setting in Remote Desktop server Configuration) encrypts and decrypts data sent from the client to the server and from the server to the client, with the Federal Information Processing Standard (FIPS) 140-1 encryption algorithms, using Microsoft cryptographic modules. For more information, see Terminal Services in Windows Server 2003 Technical Reference.
• The High setting encrypts data sent from the client to the server and from the server to the client by using strong 128-bit encryption.
• The Client Compatible setting encrypts data sent between the client and the server at the maximum key strength supported by the client.
• The Low setting encrypts data sent from the client to the server using 56-bit encryption.

Additional troubleshooting step: Enable CAPI2 event logs

To help troubleshoot this problem, enable CAPI2 event logs on both the client and server computers. This command is shown in the following screenshot.

Workaround for the issue (You cannot completely disconnect a Remote Desktop server connection) described in Symptom 3

To work around this problem, follow these steps:

1. Click Start, click Run, type gpedit.msc, and then click OK.
2. Expand Computer Configuration, expand Administrative Templates, expand Windows Components, expand Remote Desktop Services, expand Remote Desktop Session Host, and then click Connections.
3. In the right pane, double-click Configure keep-alive connection interval.
4. Click Enabled, and then click OK.
5. Close Group Policy Object Editor, click OK, and then quit Active Directory Users and Computers.

Resolution for Symptom 4

Important

This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, see 322756 How to back up and restore the registry in Windows.

To resolve this problem, back up and then remove the X509 Certificate registry keys, restart the computer, and then reactivate the Remote Desktop Services Licensing server. To do this, follow these steps.

Note

Perform the following procedure on each of the Remote Desktop servers.

1. Make sure that the Remote Desktop server registry has been successfully backed up.

2. Start Registry Editor.

3. Locate and then click the following registry subkey:

   HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlTerminal ServerRCM

4. On the Registry menu, click Export Registry File.

5. Type exported- Certificate in the File name box, and then click *Save.

   Note

   If you have to restore this registry subkey in the future, double-click the Exported-parameters.reg file that you saved in this step.

6. Right-click each of the following values, click Delete, and then click Yes to verify the deletion:

   • Certificate
   • X509 Certificate
   • X509 Certificate ID
   • X509 Certificate2

7. Exit Registry Editor, and then restart the server.

References

For more information about Remote Desktop Gateway, see the following articles:

If this article does not help you resolve the problem, or if you experience symptoms that differ from those that are described in this article, visit the Microsoft Support for more information. To search your issue, in the Search support for help box, type the text of the error message that you received, or type a description of the problem.

What is the Trojan Spyware Alert scam?

Scammers behind this tech support scam attempt to trick unsuspecting visitors into believing that their computers are infected with a Trojan and/or Spyware and calling the provided number. In most cases, users who contact scammers behind these sites are encouraged to pay for unnecessary services and/or software, or even to provide remote access to their computers.

You should avoid these websites. This particular web page is hosted using Amazon AWS, a legitimate service provided by Amazon. This is not the first case whereby cyber criminals/scammers have employed this service for malicious purposes.

Like many tech support scam web pages, this one looks very similar to the official Microsoft website. In fact, Microsoft has nothing to do with this or other websites of this kind.

This particular page displays two deceptive pop-up windows notifying visitors that it has detected 'Trojan Spyware', found error code '#0x898778', and blocked access to the computer for security reasons. This page also claims that data such as email credentials, banking passwords, Facebook login credentials, pictures and documents have been compromised.

Visitors are instructed to resolve the problem with the help of 'Windows Support' by calling the +1-(877)-570-9733 number immediately.

In most cases, scammers behind such pages attempt to trick users into paying for supposedly legitimate technical support services and software, or allowing them to access and control their computers remotely via a Remote Access/Administration Tool (RAT).

Note that granting such access to cyber criminals/scammers could infect your computer with malware (e.g., ransomware, Trojan-type malware), and they might steal personal information or perform other malicious actions.

Some examples of other similar scams are 'ERROR # 0x6a4-0xf9fx3999', 'Activation Failed! (Error Code 001)' and 'Windows Error Code: DLL011150'. Scammers behind these pages attempt to trick visitors into believing that there is a issue with their computers and into calling a specific number.

Once the call is made, scammers try to extort money from people or attempt to trick them into installing a RAT. Most users do not visit these sites intentionally - they are opened through other untrusted sites, deceptive ads, or by installed potentially unwanted applications (PUAs).

How did potentially unwanted applications install on my computer?

Browser hijackers, adware-type apps, and other types of PUAs are commonly distributed by integrating them into the download and/or installation set-ups of other programs, so that a proportion of users inadvertently download and install them together with their chosen software.

This distribution method is known as 'bundling'. Offers to download and install additionally-included apps usually appear in 'Advanced', 'Custom' and other settings of the set-ups (where they can usually be declined). Many users fail to check and change these settings, thereby granting permission for PUAs to be downloaded and installed by default.

In addition, unwanted downloads and installations are sometimes caused by clicking deceptive advertisements capable of executing certain scripts.

How to avoid installation of potentially unwanted applications

Download software and files from official websites and via direct links. It is not safe to use torrent clients, eMule (or other Peer-to-Peer networks), third party downloaders, unofficial websites or other sources of this kind. Avoid third party installers. Check 'Advanced', 'Custom' and other settings, and decline offers to download or install unwanted software.

Do not click ads that are displayed on dubious websites, since they can open other untrusted websites or even cause unwanted downloads and installations. Remove any unwanted, suspicious applications (extensions, add-ons, and plug-ins) that are installed on the browser.

The same should be applied to programs of this kind that are installed on the operating system. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

The appearance of Trojan Spyware Alert pop-up scam (GIF):

Text presented in the initial pop-up of the Trojan Spyware Alert scam:

Windows Defender

Trojan Spyware Alert - Error Code: #0x898778
Access to this PC has been blocked for security reasons.

Contact Windows Support: +1-(877)-570-9733

Threat Detected - Trojan Spyware
App: Ads.financetrack(1).exe

Run Anyway Back to Safety

Screenshot of the second pop-up window:

Text in this pop-up:

Windows Defender - Security Warning
** ACCESS TO THIS PC HAS BEEN BLOCKED FOR SECURITY REASONS **

Your computer has alerted us that it has been infected with a Trojan Spyware. The following data has been compromised.

> Email Credentials
> Banking Passwords
> Facebook Login
> Pictures & Documents

Windows Defender Scan has found potentially unwanted Adware on this device that can steal your passwords, online identity, financial information, personal files, pictures or documents.

You must contact us immediately so that our engineers can walk you through the removal process over the phone.

Call Microsoft Support immediately to report this threat, prevent identity theft and unlock access to this device.

Closing this window will put your personal information at risk and lead to a suspension of your Windows Registration.

Call Microsoft Support: +1-(877)-570-9733 ( USA Toll Free )

Cancel

Text in the background page:

Error: Unknown System Failure!

Contact Support

+1-(877)-570-9733

( USA Toll Free )

LIVE CHAT

Yet another variant of 'Trojan Spyware Alert' pop-up scam:

A slightly different variant of 'Trojan Spyware Alert' pop-up scam (the error code is different):

Text presented within:

Windows Firewall Protection

Microsoft

Trojan Spyware Alert - Error Code: #0x268d3
Access to this PC has been blocked for security reasons.
Contact Windows Support: +1-844-264-1242

Treat Detected - Trojan Spyware
App: Ads.financetrack(1).exe

[Run Anyway] [Back to Safety]

Another example of 'Trojan Spyware Alert' pop-up scam:

Text presented within:

Windows Firewall Protect

Trojan Spyware Alert - Error Code: #fc71cibus9re61
Access to this PC has been blocked for security reasons.
Contact Windows Support: 1-888-308-5705 (Toll Free)

Threat Detected - Trojan Spyware
App: Ads.financetrack(1).exe

[Run Anyway] [Back to Safety]

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Quick menu:

• STEP 1. Uninstall deceptive applications using Control Panel.
• STEP 2. Remove rogue extensions from Google Chrome.
• STEP 3. Remove potentially unwanted plug-ins from Mozilla Firefox.
• STEP 4. Remove rogue extensions from Safari.
• STEP 5. Remove rogue plug-ins from Microsoft Edge.
• STEP 6. Remove adware from Internet Explorer.

Removal of potentially unwanted applications:

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for any suspicious/recently-installed applications, select these entries and click 'Uninstall' or 'Remove'.

After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Combo Cleaner checks if your computer is infected with malware. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available.

Remove rogue extensions from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select 'More tools' and click 'Extensions'. Locate all recently-installed suspicious browser add-ons and remove them.

Optional method:

If you continue to have problems with removal of the trojan spyware alert tech support scam, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select 'Add-ons'. Click on 'Extensions', in the opened window remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with trojan spyware alert tech support scam removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Microsoft Remote Desktop Error Code 0x207

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon (at the upper-right corner of Microsoft Edge), select 'Extensions'. Locate all recently-installed suspicious browser add-ons and click 'Remove' below their names.

Optional method:

If you continue to have problems with removal of the trojan spyware alert tech support scam, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Remove malicious add-ons from Internet Explorer:

Click the 'gear' icon (at the top right corner of Internet Explorer), select 'Manage Add-ons'. Look for any recently-installed suspicious browser extensions, select these entries and click 'Remove'.

Optional method:

If you continue to have problems with removal of the trojan spyware alert tech support scam, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

Microsoft Remote Desktop Error Code 0x516

In the opened window, select the Advanced tab.

Microsoft Remote Desktop Error Code 0x104

Click the Reset button.

Microsoft Remote Desktop Error Code 0x3000066

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Microsoft Remote Desktop Error Code 0x704

Summary:

Microsoft Remote Desktop Mac Error Code 0x7

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free. software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

Removal assistance:
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