In case you loos your regular profile either local of Domain, here is a fix for it
There is a better way to fix the immediate problem. You can do this under your own user ID if you have administrative privileges:
Navigate to “HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList”
You should find your profile key, with another named identically except for a “.bak” extension
Delete the “normally named” key
Rename the “.bak” named key to remove the “.bak” extension
Restart your machine
If you do not have administrative privileges, you will need to fist sign on with a user ID that does.