I have a fairly new Lenovo laptop that recently started having problems. The symptoms are that the system stops responding, though not fully, after about half a minute or so. Basically, no new windows can be opened and all opened programs stop responding. Though the mouse is still able to move, so it's not a full system crash, and there's no BSOD. When I start the laptop in safemode, it works without a problem, leading me to believe that some system file has been corrupted. I have also run the windows diagnostics command (sfc/ scannow) in the console which confirms that there are some corrupted files, but it isn't able to fix it. After all this, I've decided to give up and try to reinstall windows.
There's two things I have to ask:
1. Is there any magical fix to this problem that I've overlooked?
2. If I reinstall windows, will it still be activated? I'm guessing no, but is there any way for me to activate it again without purchasing it?