Right out of the box good old Vista will get the following warning every time you try to connect to a Windows 2003 server using Remote Desktop included in Vista.

remotedesktoperror Surpress Vistas Remote Desktop Warning Message I know already!

 

Remote Desktop cannot verify the identity of the computer you want to connect to. Yeah and? This is really annoying as most of the machines I connect to are older servers and client workstations – not on VISTA!
 
If you are in a work environment where you trust the Windows 2003 servers you connect to, you can safely remove this warning by adding an entry to your Vista machine’s Registry:
1. Open Regedit 
2. Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Terminal Server Client
3. Add The DWORD (32-bit) Value AuthenticationLevelOverride and give it the value 0 
 
 
That’s it! No need to restart or logout; you can just open a new remote desktop connection to test your changes.

 

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