Enable or Disable Elevated Administrator account in Windows 10  

@ Dennis

Yes. I use four different keyboards regularly (UK, German, French, Danish) and, being slightly pedantic, I can usually notice when I am typing nonsense.

I am unclear to what end these questions are leading. Rest assured that teh commands were enterered correctly - sometimes 4 or 5 times, giving ample scope to get it right by simple random fluctuations. (that is a statistician's joke).

I was following step 5, but when I try to add the REM_SAM it tells me I cannot unload SAM. It does not add the REM_SAM into the reg.

So, let me back up so that you know what it is that I did, and am trying to do. I was messing with the Winlogon\SpecialAccounts\UserList key to hide some of the accounts that are needed on my setup. I made the error of hiding both my admin accounts ^^; So inside normal Win10 or Safemode, when I try to elevate, Windows doesn't see an admin account, and I have no option to enter a password. I was able to Shift+Restart to get to just the command prompt, where it does show me both of my normal admin accounts, which I can login from there with the passwords. HOWEVER, I can't seem to get into lusrmgr to just add a new visibile admin account. I had tried to do it via net commands, and it just gives me errors. I was hoping to just change the Winlogon\SpecialAccounts\UserList key that started this whole mess, but SpecialAccounts does not exist when I open regedit from here. I tried to manually add it in, but it does not seem to stick after the restart. So, I have admin access (I think), but can't seem to solve my problem. Any help would be greatly appreciated!

TL;DR
I hid my admin accounts in regedit ^^;
I cant seem to undo that in regedit (command prompt only)
Cannot seem to add the REM_SAM to the hive to make the other changes
Cannot turn on the embedded Administrator account (as I think this is my only option?)