Windows 10: What to do with lost user accounts or cannot login after Windows 11 update

I updated to Windows 11 today, and I can no longer login with any of the user level Microsoft Accounts from the keyboard. The only accounts that I am able to access are two [local] administrator accounts, that are not tied to Microsoft Accounts.I am able to see all the accounts from Computer Management, where they look fine and are not disabled.When I login as "COMPNAMEAdmin" and try to add one of them from Settings.Accounts.FamilyAndOtherUsers I can neither add it as an online account says the account already exists or as a local account says to choose another name.When I login as "Admini

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User account info lost after changing login email






I recently changed my main Microsoft account login email and after doing so, all my 10 machines no longer show my name on the login screen (shows my email address twice) or in the Start menu (only shows the email address) and as you can see in the above screenshot, permissions no longer show as my login and email address.

Things I've done so far to try and correct it:

1. Change my account to local login, then back to my Microsoft login, which temporarily corrected it, but then after a few restarts, the info gets lost again
2. Manually added my name in Computer Management > System Tools > Local Users and Groups > Users... this fixed it, but again, only until a restart

Has anyone else experienced something like this and no of a way to correct it (and make it stick)?

 

Lost User Account

After upgrading from Window 7 to 10, I lost my wife's User Account got messed up, using my email address and login password, with no ability to change them. I received the reply below, but still have problems:

I understand the inconvenience you are facing with user accounts, we will help you to resolve this issue.



I would like to inform that there can be only one Microsoft user account on one device, and that might be the reason you are unable to change the email address for the user account.



I suggest you to create a new account (Local account) on your computer and transfer the content to newly created user account.



Step 1: Creating a new user account

• Type cmd in the Search bar form the desktop.
• Now, Right-click on cmd.exe from the result and select Run As Administrator.
• User Account Control or UAC dialog box will appear, click on Yes.
• Type net user username password /add
  
  [Replace ‘username’ and ‘password’ with your desired username and password]

Step 2. Copying old files to newly created User Profile

• Go to C:\Users\(Your-Corrupted-
• Copy all files except three files:

• 
  NtUser.dat
  
• 
  NtUser.ini
  
• 
  NtUser.log
  

3. Go to C:\Users\(New-User-Profile-

4. Paste all those copied files here.

I tried to create a new user account as in Step 1, but when I put in the command as written above, I kept getting messages about correct syntax for the command. No matter what I tried, it wouldn't work. I
then tried to set up a new account using the Settings/Accounts/"Add someone else to this PC" menu. I set up the account, but no folder was created under C:\Users\. I tried adding a folder using the new accounts user name and transferred the files from the
other account. When I tried to log in, I received the same error message. I am at a loss as to how to get back the user account with the correct username, email address, and password. HELP!!!

 

Unknown user account at windows 10 login screen

I have the same issue but I have 11 users and now on the log in screen I have 11 user names and 11 of the "password" with the "key" next to them. So, that's 22 logins on the lock screen. The "password" logins are actually the users. I am trying to get rid
of the "password" tabs so only my user names show on the login screen. I checked for the registry folder you mentioned and it is not in the list.

Any other suggestions?