Ok so in the last few days I have been having the following problem, and it would only happen for these things:
My game Guild Wars 2 suddenly became completely unplayable, it would actually show FPS to be around 12-13, but in reality it's more like 2-3. Also, if I turn the sounds on, it is just weird, constant electronic stutter loud thing, hard to describe.
Also the sound would stutter on Windows startup (Windows 7 32-bit)
Also it would stutter every few (maybe 10) seconds when playing a YouTube video.
My other game (Dota 2) works just fine. However, just before this problem occured, my PC crashed, I got a blue screen with some letters, some bar quickly filled to 100% and my PC restarted. This happened when I closed the Dota2 game (while song on YouTube was playing). But! I had similar problems with Guild Wars 2 only without stuttering sound 2 months ago, and installing different graphics card driver version solved it (until the next restart, then I would have to choose another version, so I could even keep switching 2 versions).
But, I seriously tried everything now. Every combination of sound and graphics drivers, I even decided to download windows updates. I ran your system restore, it didn't help. Antivirus, everything really. The only thing I haven't tried is Windows reinstalling which I can't do because I don't have a Windows CD. I also never set up a system restore point so sadly I can't do that. I am really desperate and have no idea what to do, I think I spent 20 hours just trying different things, researching different forums to see people who had same problems, but none of their fixes worked for me. Please help me.