Since mstsc.exe is a core Windows component, the most effective first step is to let Windows repair itself.
Alternatively, use > Display adapters > Update driver . Final Resort: The Command Line Workaround Remote Desktop Connection Mstsc Exe Error
If the error occurs during the login phase, your saved credentials might be the culprit. Type "Control Panel" in the Windows search bar and open it. Go to > Credential Manager . Select Windows Credentials . Since mstsc