My daughter's laptop (HP) will not boot. It was working sporadically. I booted it, and ran Windows Update because I wanted to make sure it was up do date and then I would run anti-virus. During the update the computer went dead so I assume the updates were interrupted. I cannot get even to safe mode. The computer did not come with a Vista disk. Is there any way to create a Vista boot disk and try to boot up this computer? I can get to BIOS but cannot find anything that helps. Thanks.