Blue error screen on Windows

You can remove virus from your PC, some virus might be able to cause this type of problems.

If the problem is new, you can press the F8 key on startup to try to use system restore to come back to a previous restoration point. This will cancel many changes recently made in the computer configuration and in the softwares but won't delete any document.

If your comptuer still boots, you can try to identify the software that makes Windows crash so you can uninstal or reinstall it. A little software such as whocrashed can let you consult details concerning last crashes. You can deduct the role of suspected files with their name and location. For example, a file containing the word ATI is surely a part of a ATI graphic card drive installed on the PC.

If the computer doesn't boot anymore, you can start Ubuntu from its LiveCD to verify if the computer works correctly with Ubuntu. If that's the case, there are little chances that the problem is a real defect in the hardware.

If you don't find any way to fix the problem, backing up your PC and reinstalling Windows is a unpleasant trick that however garantee good results if no parts of your computer are defect.