I bought an Open Box HP ENVY All in One computer a couple of weeks ago. I was able to do a few things on it, but Best Buy left the RetailAdmin login on there and I was prevented from changing any settings.
I went back to the store to find out how to remove the RetailAdmin and set me up as the Systems Administrator, but they said that I needed to bring the computer back in. I can't do that because it weighs 44 lbs and I had to hire someone to carry it up to my apartment.
I asked if I installed a clean update to Windows 10 Pro, would that solve the problem and they said 'maybe.' I bought the Windows 10 Pro software, only to discover that I couldn't install it without the RetailAdmin password nor even get past the Windows login screen.
Is there any way to reformat the hard drive and start from scratch? Install Windows 10 Pro and make myself the Systems Admin?