freeze

Windows programs freeze and the only way to get it working again is to hit Control-Alt-Delete and go to switch user and log into the same user. So sometimes this happens every 20 min and sometimes it doesn't happen for hours or even a day. Its just the programs that freeze and not all of...

Some time ago my pc started to crash. It goes to a black screen and sometimes a bzz sound can be heard. It seems to happen more if playing a game of after it just happened. But it also happens randomly. When this happes I can only reboot the pc with the tower button. I have checked window and...