This is for network administrators who use the Remote Desktop option for remote support. If Remote Desktop has been disabled on the remote computer, you can enable it remotely (as long as you have administrator rights on the remote computer). To do this:
1. Run Regedit
2. Select File | Connect Network Registry
3. Enter the name of the remote computer and select Check Names
4. Go to hklm\system\currentcontrolset\control\terminal server\FdenyTSConnection=1
5. Change the FdenyTSConnection to 0
Now you should be able to connect to the remote computer using Remote Desktop.