Resolve Windows 10 related issues for your HP computers or printers by HP Windows 10 Support Center
Administrator account is lost after windows update
@Rusty_nutzz , welcome to the Community.
Here is a guide that may help you solve your problem. It was written in 2018, but from what I can tell it is still appropriate.
Please click the Thumbs up + button if I have helped you and click Accept as Solution if your problem is solved.
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