How to Start Windows in Safe Mode?

1. Immediately after the computer is powered on or restarted (usually after you hear your computer beep), tap the F8 key in 1 second intervals.
    
2. After your computer displays hardware information and runs a memory test, the Advanced Boot Options menu will appear.
    
3. Use the arrow keys to select Safe Mode or Safe Mode with Networking and press ENTER. 

4. When you are finished troubleshooting, repeat steps 1-3 and select Start Windows Normally to return to your normal Windows configuration.