I accidentally knocked my computer on its side and at first it would work for about an hour or so. Then it would suddenly freeze and blue and yellow lines would appear on the screen. If I did a force shutdown, it would work for a couple of hours, then freeze again. Now, it has blue lines on the screen as soon as I turn it on. It always freezes right after the Windows 7 logo comes on and it says "Starting Windows".
I have a lot of important information on my hard drive, so I don't want to try to restore it if I can, and I think it might be a hardware issue anyway. I'm short on money as well, so I'd rather not buy a new computer or have to hire a technician. Does anybody know if it can be saved?
I don't know many computer part names, so can you help me out in a way I can understand? Thanks!