Original post : Corrupt User Profile: Fix for Windows 10, 11, XP, Vista, 7, 8.
The User Profile Service failed the logon. User profile cannot be loaded.
Another_Username
New_Username
CORRUPT_USERNAME
NEW_USERNAME
C:\Documents and Settings\CORRUPT_USERNAME
C:\Documents and Settings\NEW_USERNAME
C:\Users\OLD_USERNAME
C:\
OLD_USERNAME
C:\User\NEW_USERNAME
Fix it #50446 is only available for Windows Vista and Windows 7.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
.bak
C:\Users\MY_USERNAME
C:\Users
MY_USERNAME
S-1-5-23232 S-1-5-23232.bak
.backup
RefCount
0
State
MYUSERNAME2
net user administrator /active:yes
shutdown -r -t 0