How do I start windows in safe mode?

[Guest Joseph Birchall]

When I reset my computer it gave me an error saying 'the user profile service failed the sign-in' and then kicks me back out to the lock screen. I have tried to go into the startup settings which makes you reset the computer to unlock but every time I hit reset it just doesn't come back on. Rather than reseting it and unlocking the options my screen just stops displaying video despite my pc being on.

 

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