Lost admin rights on windows 10

[Nicole2349]

Hello, I was playing around in computer management because I wanted to get rid of always login in as other user and having to manually input my local account, and lost my admin rights, now I can't access to anything that requires admin rights. It shows "to continue, enter a admin user and password". I have tried configuring computer management but it tells me that "access is denied". I can't enter safe mode neither because my laptop screen is pitch black and I'm using a monitor to project it. Nor can I make another local account because the option doesn't appear to me. What can I do?

Continue reading...