The User Service service failed the logon. User profile cannot be loaded.

My customer encountered the above error flag while trying to logon to a particular Windows 7 workstation this morning. Investigation shows that some other users can logon successfully while she couldn't logon. Futher examinations on Windows 7 registry revealed that show that user's profile has been damaged with (.bak) extension.

Resolution:

• Logon using local Administrator credential
• Locate and open "Users" directory path
• Rename affected user profile
• Load Windows 7 registry editor(regedit.exe)
• Navigate to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
• Right-click on ProfileList folder(Key) then click Find
• Type affected username and click on "Find Next" command button
• Right Click then delete the affected user key

Restart the terminal and ask the user to logon again.