Should be under account settings somewhere. Loads of walkthroughs online to consult as well. But depending on your circumstances, like if she doesn't care abo

Should be under account settings somewhere. Loads of walkthroughs online to consult as well. But depending on your circumstances, like if she doesn't care about being in the Microsoft ecosystem, it might be safer to create a fresh local account and delete the MS account from the laptop, just to prevent any crosstalk.