It's not possible to cure them all except by replacing the PC with the issues for one without issues. Sorry if that seems way out there but with hundreds of errors and nothing more to go on, there's little else to suggest. Reloading the OS might fix it but what if the error is a too hot CPU or bad HDD, RAM?
I'd like to hear more what you mean by clean my system. While I like CCLEANER and it's file cleanups so folk don't read what it does and then complain when cookies and passwords were cleaned out.
I had MS do remote access on my pc and they found hundreds of windows error reporting. Does any know how I can get rid of these errors and clean my system?