I have had to reinstall Windows 7 three times because of this problem. It has to be the Windows updates because after a clean reinstalling of Windows 7, the computer works fine. I am able to download Norton 360, do a system restore disk, download Steam and some games. The next day I turn on the computer, it automatically tries to download and configure updates. It never finishes and it restarts. Eventually it tells me it failed to configure updates and I can get on it again. But Update indicates there are more than 20 or so "important" updates that need to be installed. I disabled automatic updates since the updates are what caused the problem. But I realize it can't stay this way. Eventually I will have to get some of those updates to operate the computer.
I want to consider a new operating system if there is no solution to this.