Windows: How to change Windows RDP Port Number

To change your Windows RDP (Remote Desktop Protocol) port number to other,

1. Open Registry Editor,

C:\> regedit

2. Navigate to,

HKEY_LOCAL_MACHINE -> System -> CurrentControlSet -> Control ->Terminal Server -> WinStations -> RDP-Tcp

3. Look at “Port number” and select Decimal.

4. Change to any number that you need and perform a reboot if it is not apply immediately.

Howto: Change Windows Server 2003 RDP Port

By default, Windows Terminal Server and Remote Desktop Protocol (RDP) listen on TCP port 3389.

To change the port to your custom port, you may refer to below:-

1. Open the registry editor.
2. Navigate to,

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp

3. Find the “PortNumber” and change to your needed port.

To be secure, reboot your server to apply new port.

The terminal server has exceeded the maximum number of allowed connections

For those who are using Windows Server Remote Desktop Connection, you might found this error during your operation.

Error: The terminal server has exceeded the maximum number of allowed connections

As Windows Server 2003 is using Terminal Services to control the Remote Desktop Connection, your maximum connection is 2 only. However, you got the third connection allowed as admin mode.

mstsc /v:x.x.x.x /admin

If you are using Windows Server 2008, use the admin console mode instead.

mstsc /v:x.x.x.x /console

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Windows Desktop hang or not refresh

Windows, a great GUI Operating System that surf for Billions of the user to get the task done easily.

However, the GUI desktop might found dead/hang and causing you are not able to done for any task. This could be found when you have a huge file to be copy or delete and you are going to perform the second task.

For this case, it is involve for the process called explorer.exe, to done it you may refer to the step as below.


1. From your Desktop, press Windows button + R to launch the Run command.
2. Enter “taskmgr” and press OK.
3. From the processes tab, killed the task “explorer.exe”.

4. Then Select File and click on “New Task (Run …)”, then enter “explorer.exe” and restart the Windows explorer.