Windows 10: I am locked out of being an Admin on my Windows 10 Device

I have searched for hours with nothing working. Here is the scenario:1 I have a local administrator account. It worked fine for years2 I logged into my machine and it reverted back to my old company domain account xxxxx/username3 I have admin on that account as well but every time I try to do anything it asks for my username and password. I enter what I have always entered and it it denies access. 4 I right click to run as administrator and it does the same thing.5 I go into local users and it won't let me change anything it says "access denied"6 I log out and try to log in locally compu

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