Click on the power button while holding the Shift > click Restart.In case you’re unable to login to your PC or if it’s stuck on the lock screen follow these steps: Under Advanced startup, click Restart now.Click on Update and Recovery and go to Recovery.Go to the Start Menu and type Update and recovery.Safe Mode is a troubleshooting option for Windows that starts your PC in a limited state. Home › Windows › Your PC did not start correctly? Here’s what you need to do