Pc is Lenovo 3000h Vista

scan the hard drive with a virus check software, and see it that corrects the problem

In the PC Lenovo - Vista - some times a Square patch is appearing in the Screen . Why?

Everything on my pc screen appears upside down,how do i fix it?

On a Windows Vista computer, how do I set a password that appears every time I open up the computer?

My computer has blue screen appear whilst starting and restarts my pc continously HELP?

my pc (windows vista) showing shadow in each letters, objects in the screen.......hence the screen appears haz?

Blue Screen of Death on Vista PC?