Where did you get the "cheats"?
Who knows what has transpired but I would not be surprised if your system has been infected in some manner.
Run your AV program(s) and see if they find any infections or other problems.
What make and model hard drive? Run the manufacturer's diagnostic software. See what the diagnostic software reports.
Very likely you may need to wipe the drive, reinstall everything, and reconfigure the system.
And stop cheating or trying to cheat. Learn to play fair in both games and reality. That is really more fun....