I apologize in advance if I did not follow proper forum posting etiquette and will be more than happy to change anything I need to. Well my problem is a little bit unique as far as I can tell because I can't seem to find any post anywhere that describes my problem (but then again my only search were forums). Well I guess the best way to describe it is that my computer seems to be locking up for minutes at a time and sometimes freezing as well. Here is an example, I'm on skype and on firefox at the same time, my firefox freezes and goes to not responding, I go into my start menu and go into my C: drive and then it goes to not responding as well, all the while my skype is perfectly fine as long as I don't click on it and it goes to not responding as well, but the call is still perfectly intact. Another example would be that I am on World of Warcraft and the game will either freeze without a moments notice or every once in a while all of the sound will go quiet, and any new icons that pop up are no longer icons, just square with numbers underneath them and then after about 5 minutes of that the game freezes. On a few occasions while browsing the web everything will go to not responding but again the skype call I am in is working perfectly fine, but after about 10 minutes of this happening the entire computer freezes. Alt+tabbing does not work when this is happening, and ctrl+alt+delete only results in a black screen in which nothing works but the mouse and the skype call. I did a system restore to a week ago when I wasn't having this problem but the problem persisted, I have run prime 95, I scanned with malware bytes, I scanned with the tdsskiller, they all came up fine. I updated drivers, and then I ran the Windows Offline defender, I did a quick scan and it got nothing so I did a full scan and 6 hours later it finished and it removed 7 items but it did not fix my computer's lock-up problem. Using windows 7 64bit, and I am obviously willing to post any information about my computer specs or anything else anyone might need to help me solve my problem. I am almost convinced at this point it must be some sort of hardware problem.