How to Boot to Safe Mode in Windows 10

This article describes the process of booting to Safe Mode in Windows 10. For other Operating Systems, please select here: Windows 8/8.1, Windows 7, Vista, or XP. 

This article assumes that the system has power and can complete the POST process. 

Video (English only) - Starting Windows 10 in Safe Mode (Official Dell Tech Support)

From Windows:

1. Press the Windows logo key + I on your keyboard to open Settings.
   • If that does not work, select the Start Button in the lower-left corner of your screen, then select Settings. 
2. Select Update & Security > Recovery. 
3. Under Advanced Startup, select Restart Now. 
4. After your PC restarts to the Choose an Option screen, select Troubleshoot > Advanced Options > Startup Settings > Restart. 
5. After your PC restarts, a list of options should appear. Select 4 or F4 to start your PC in Safe Mode. If you need to use the Internet, select 5 or F5 for Safe Mode with Networking.

From the sign-in screen:

1. Restart your PC.
2. At the sign-in screen, hold the Shift Key down while you select Power > Restart. 
3. After your PC restarts to the Choose an Option screen, select Troubleshoot > Advanced options > Startup Settings > Restart. 
4. After your PC restarts, a list of options should appear. Select 4 or F4 to start your PC in Safe Mode. If you need to use the Internet, select 5 or F5 for Safe Mode with Networking.

From outside of Windows:

1. At the Choose an option screen, select Troubleshoot.
2. At the Troubleshoot screen, select Advanced Options.
3. At the Advanced Options screen, select Advanced Startup Options.
4. Select Startup Settings.
5. Select Restart.
6. The computer will restart and enter the Startup Settings menu. Select 4 to Enable Safe Mode.

Microsoft provides additional details here - Start your PC in safe mode in Windows 10.  

If you are unable to boot into Safe Mode, refer to the KB article Computer will not boot to Windows 10 for further troubleshooting.