My Toshiba laptop (64-bit) windows 7 won't boot properly. This is what happens: I power the laptop on and the Windows splash screen appears, then it shifts to the ominous BSOD but it disappeared too fast for me to read. Then it just stays on a black screen with a blinking underscore.

I've tried a few solutions like pressing F8 and restoring it to it's last good configuration but it always is "unsuccessful''
Also, I've noticed in pretty much every forum that Toshiba Satellite Laptops suffer from these symptoms the most

Any help regarding this issue is appreciated. I will try to respond as fast as possible.