Administrator Locked-Out (Windows 10 HE)

A few weeks ago I did a stupid thing. I started to download a "free program" called, Uni-Converter.

Before I installed it, I started to think it was a bad idea so I didn't install anything but it was already too late.

I need to regain control of my PC once again. I need to get my admin rights back and I need to gain access back to my Windows Security Dashboard. This happened to me a few years ago and I was able to run a code in DOS to regain control of my PC, but this time it's not working.

Can you help me please?
Thanks in advance. :)

have you tried system restore and pick a date prior?

have a look here: hxxps://www.passfab.com/windows-10/how-to-unlock-windows-10-administrator-password.html

or here: hxxps://www.ionos.ca/digitalguide/server/configuration/enable-administrator-account-windows-10/

Or...........

hxxps://www.yourwindowsguide.com/2022/04/lost-administrator-rights-windows.html#:~:text=For%20that%2C%20double%20clic k%20the,now%20have%20administrator%20rights%20rest ored.

if you use a limited or local account can they still lock you out? How? Is it your ip addy, unique id of your device or something else?