If you are having issues with your computer, you can restore it to a time that your computer worked properly. If you can no longer boot to Windows please follow these directions..... Turn your computer on. Hold down the Shift key while quickly tapping the F8 key. This should take you in to Recovery Mode. Select - See advanced repair options. Click On The Troubleshoot Button. Select Advanced Options. Choose System Restore and follow the prompts. System Restore may take a while to complete.