Any tech heads about need help

[annabel taylor]

Sorting a laptop for someone
Hp one
Someone tryed to set up a new mircosoft account
But I'm stuck at log in they keep asking for a pin that nobody knows
When I try reset it says Microsoft account does not exist
When I try create a password using that email says already taken
And says cannot reset pin at this time also frustrating
I cannot swap users and now just stuck on a log in page
Cant even factory reset it

Any help ideas