Upgrading processor...

If  I were to buy a new processor and install it, would my current install of Windows still work? I get the feeling that the answer is no, but I figured I'd see. I looked around on Google for the answer, but I didn't see anything about it.

Thanks to anyone that takes this seriously and actually answers me. ♥

>>5
Speaks the truth. After upgrading cpu windows worked so badly I had to reformat.