Here’s an easy fix for a computer not booting up to Windows. It’s called the Last Known Good Configuration feature which is part of your Windows startup options. The Last Known Good Configuration allows you to start your computer by using the most recent settings that worked for your machine. Every time you turn your computer off and Windows shuts down successfully, important system settings are saved in the registry. We can use this saved setting to start the computer up normally when we encounter problems booting up our machine.

This is very useful specially when you have installed a driver or software which is causing some problems on your machine.  Doing this will not affect your files.  Here’s the guide on how to do this.

1. Power on the computer.
2. As soon as the computer start turning on, keep tapping the F8 Key.
3. You should now see the Windows Advanced Options menu.  (if you don’t see this screen, then turn the computer off and back to step 1)
4. From the menu options, use your arrow keys and highlight Boot to Last Known Good Configuration (your most recent settings that worked), then press Enter.
5. If your computer has more than one operating system installed, use the arrow keys to highlight the operating system that you want to start, and then press ENTER. Windows will then resume starting normally.

This is the same procedure for Windows XP, Windows Vista, and even for Windows 7.  So hope this has been of help to you.