1.    17 Apr 2016 #1
    Join Date : Oct 2014
    Posts : 207
    Windows 10 x64

    Change username - result: two login accounts, delete 1 unable to login

    - Did a reset of Windows 10 on a virtual machine
    - The default account name is then the first 5 characters of my email account
    - I changed that to my real name
    - Rebooted
    - I was then offered 2 login accounts
    - logged in using my real name
    - went into account administration (Settings->Accounts-Family & Other users
    - under 'Other users' removed 'Guest' (the first 5 characters)
    - rebooted

    Now, I was still offered two accounts, but my password did not work.
    100% sure I was using the correct password and I have tried a dozen times on both accounts.
    Windows then suggested to do a 'Recover your windows live account'

    But even with the new password I could not log in...

    I was lucky to have a snapshot of an earlier Windows - so I restored the snapshot and Windows is running fine now.

    This is a bit of a weird situation.

    What if this was on a real machine?
    I may need to re-install Windows from scratch. Not so much of a big issue in this case.

    However... Windows will surely again offer the 5 character account, 2nd item above.
    Q1: Will that then work with the new password? (the new password is combined with my full email address)
    Q2: How was I supposed to proceed to avoid this?

    Note that:
    - on the virtual Windows (VMware) C:\Users\[AccountName] still reads the first 5 characters of my email address (outlook.com)
    - on the host-pc C:\Users\[AccountName] is different , being the first 5 characters of hotmail account

    Changed from hotmail to outlook.com a while ago, but the host-pc was set up at the time I was still using the hotmail account.

      My ComputerSystem Spec
  2.    18 Apr 2016 #2
    Join Date : Nov 2015
    Posts : 2,962
    64bit Win 10 Pro ver 1709 Build 16299.125

    Microsoft does indeed pick the first 5 characters of your email address when setting up a new Microsoft Account login. If you create a local account first you can specify the username you want and then change it to a Microsoft account later. In that way you will keep your original [AccountName] for the user folder.

    Changing the [AccountName] is very difficult, I am not sure what you did in step 3 of your post but that is most certainly where things started to go wrong.

    I hope I have understood your question properly.
      My ComputersSystem Spec


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