I messed up my daughter's computer

So I was messing around with my daughter's computer I am kind of tech-savvy but I didn't know my Microsoft account with transfer onto her computer when I put my Microsoft on her computer I didn't know how to take it off so it's decided do a master reset while the master reset was stuck on like 1% all day and all night so I decided to turn it on when I turn it on the gave me a choice to restore the files back to a previous time I did now the pewter is blinking off and on with the words ACER please help I thought I was more tech-savvy than I was I guess I wasn't
 
If you cannot roll back to a previous date, or manage to use the repair functions then you will need to do clean windows install. You might get lucky and the drive will be partitioned with the majority of her data on the other partition. Moral of the story is don't touch what you do not fully understand and always make backups. Another good idea is never to keep important data or information on the system's drive.
 
Back