Create a new bat file, edit the content as the following code, double-click to run the bat file.
del /F /S /Q /AH C:\Users\Admin\Documents\Default.rdp # 此路径要于你电脑的路径一致
reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client" /f
Pause
The following is to delete credentials, first enter the control panel