I recently ran into an issue of a Windows 7 user that had a corrupt profile, all the desktop icons were gone, drive mappings gone and profile settings back to default
The fix ended up being these sets of steps after many other fix attempts.
-Log into PC with local admin account
-Disjoin machine from domain
-Go to domain controller(s) and verify the machine account is gone, if not, delete it
-Rename the machine then reboot
-log back in locally as admin then go to C:users and move the original profile folder to the root of the C: drive
-Go to “HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsNTCurrentVersionProfileList”. Check the value “ProfileImagePath” to make sure you pick the profile that you just moved from the Users directory
-Rejoin the domain and reboot
-Log back in as the original account that was corrupt (you will be creating a new profile with default settings)
-Log back in as local admin
-Move the profile folder from the C: drive back to C:Users
-Log in as that user and everything should work. Some shortcuts may have to be re-established, but the bulk of the profile is as it originally was before corruption