Windows 10 Changed admin - locked-out

If you login with an administrator account

• Press Windows key + x
• Select Computer Management
  
• Select Local Users and Groups
• To remove or change a password select Users, right click a user and select Set Password, click Proceed enter a new password or just click OK to set it blank
• If you want to remove her account from the admin group
• Click Groups
• Double click Administrators
• Highlight her account and click Remove then OK

Somehow, she has been named "Administrator", which cannot be deleted. Her name appears at switch -on though, and her school log-in name (so she must have been logging on to some school application and started changing things locally instead of remotely. I have a mind to demand that her teacher come round and fix the thing!) Under the "Administrators" group is my name and 'Administrator' Actually I also see in "Users" my name in the right-hand column, but the 'Full name' column gives my daughter's name. (I tried deleting the password there: it did not accept that as a valid action.

I'm always willing to do a one-time login and help you fix your issue if you like. If so install team viewer and PM me the user ID and one-time password it generates.

I have looked again (your guidance has been very helpful: I had no idea about the Computer Management screen). Digging further into it, I can see that actually I am logged in as me (which explains why the desktop is as I set it out), but it gives my daughter's name as "Full Name" (and when I delete that, it comes back again. I cannot see why her school computer's log-in code comes from though: that is not in "Properties" or anywhere I can see. I tried also changing the password and a severe warning came up that if I do so then the computer will block my data for security reasons (why?) and when I did it anyway, leaving the password boxes blank, it had no effect. Getting rid of the password is the main thing of concern.

Unfortunately it's really hard to speculate what she did and what has been changed, and how the computer was originally configured through text.

• Open an elevated command prompt (Press the Windows Key type cmd, right click cmd and select Run As Adminstrator)
• type cd %userprofile%\Desktop
• Type systeminfo >> stat.txt
• Type set >> stat.txt
• Type wmic useraccount >> stat.txt
• Post that file here

Aha! I seem to have righted it, using local account settings and deleting the password that way. Goodness knows what she did, but it now lets me in with my name and without demanding a password. Thank you for your help on this - it opened up bits of the system I never knew were there, which showed where things had changed.