Upgraded from Vista to Windows 7 32 bit Home Premium 3 months ago, everything has been fine until recently. On bootup, I get a blue screen with vertical lines, then Windows starts loading for a few seconds, then back to blue sceen. I am able to boot up in safe mode with networking, but can't find the problem.
The PC is about 4 years old, original OS was Vista.
HP m7747c, Intel Core 2 6400 2.13 GHz, 4 GB Ram, GeForce 7500LE
Now, I cannot even boot up in safe mode.