Computer (Vista) went cold

[spectre330]

My computer has gone cold. It started wihen it was slow, and I cleaned it with some cleaning programs that helped a little. About a week after I restored it and went wrong. Now it says that my vista is false? I've tried to activate it 2 times with code from microsoft with no luck.
What is there to do?

[JonathanD]

Is your Vista real? Namely that it is not any crack you found online.
I have many friends who use the cracked version.

[Glenny]

But maybe it ends with, that you have to call Microsoft and get their help to reactivate Vista.

[chroma]

How has it gone with your Vista? Have you had it work again? Maybe you can use the system restore back to before the time when you got your problem.