Thats the only plausible thing that i can see what could be causing your problem. I think in your other thread i did advice you to have some anti virus running in the background cos that could be the reason you must be having this problem.
What I should do?
When I start on my computer, it was viewed on the monitor the "start windows normally", then I click it, after my computer was turning automatically off. can U help me how to repair it?
Its wise to startup in safe mode that is if you have a anti virus already installed,Because last time I trie to install a program in safe mode (anti virus program) in safe mode it came up with a restriction saying that its cos Im in safe mode.
If the same happens to you then first do a windows repair so you can atleast get back in normal windows.
If you dont know how,drop a post
cheers and good luck