How do I boot into Safe Mode from a powered-off state?

[AngieMacal]

I need help booting my PC into Safe Mode starting from a completely powered-off state. What’s the correct key combination or method to trigger Safe Mode on Windows during startup? Any steps for systems that don’t respond to the usual shortcuts?

 

[meenakshi]

To boot into Safe Mode from a powered-off state, turn on your PC and immediately press and hold the power button to force shut down. Repeat this 3 times to trigger the Windows Recovery Environment, then go to:
Troubleshoot → Advanced options → Startup Settings → Restart → Safe Mode.

 

[joan]

When you are in a switched off condition, do not start windows but instead press F8 or Shift + F8 a few times and windows will boot. That does not work, then boot up and down 3 times to enable Automatic Repair then enter Advanced Options > Startup Settings > Safe Mode.