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I just re-installed Windows 8.1 Pro and I noticed something strange about my home directory folder C:\Users\Username. The name of the folder instead of being Username is Usernam_000 C:\Users\Usernam_000. Why is that? Is this normal behavior? If not how can I change its name?

Edit 1:

As I have said in a comment all of these answers in the questions you provided as duplicates just say ways of changing the name. My principal question is why this happened. I want a way to change the name only if it is a normal situation and not a problem.

Edit 2:

As I am really curious about this "problem" I did another installation of Windows 8.1. The same thing happened again, although I deleted the partition and formatted it again.

marked as duplicate by Karan, Art Gertner, mdpc, DavidPostill, Raystafarian Apr 21 '15 at 14:50

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • are there multiple users on this install? if so while not normal it is possible it is addressing those extras as 000,001, etc etc – linuxdev2013 Apr 19 '15 at 23:28
  • @linuxdev2013 no there is only one user. – Adam Apr 19 '15 at 23:29
  • and this superuser.com/questions/495847/… – thilina R Apr 20 '15 at 0:04
  • Thank you all but all of these answers in these questions just say ways of changing the name. My principle question is why this happened. I want a way to change the name only if it is a normal situation and not a problem . – Adam Apr 20 '15 at 0:38
  • Please provide details of any related errors in the Windows Event logs at the time u created the profile – thilina R Apr 20 '15 at 0:42

This may happen if you provide a Microsoft account during installation.

If a local account is used instead, this will not happen.

You may change it as described in this answer.


Did you do this as an OS upgrade or a fresh install? During an OS upgrade, the original folders that hold user data will be renames (such as windows.old in older versions of Windows). If you look, you will likely find your old docs in one of the folders.

Edit: Windows Live account users will have their usernames truncated.


  • No it is a fresh install. Not only that but I deleted the old partition and then formatted it before installing Windows 8.1. – Adam Apr 19 '15 at 23:33
  • Is this system part of an AD? Did you try to migrate any files over from another location that would have been written to the User folder in question? Typically, the OS will make a different folder for the User if the username has an already existing folder in the directory. This is a common problem in AD setups when migrating profiles from one system to another. If you don't have the user logon first, when they do logon it'll create a folder "username.domain" rather than use the folder "username". – Nathanial Meek Apr 19 '15 at 23:37
  • No. I noticed it as soon as the install was complete, so I didn't change anything. – Adam Apr 19 '15 at 23:40
  • Is the user account in question a microsoft account or a local user? – Nathanial Meek Apr 19 '15 at 23:42
  • It is a Microsoft Account. – Adam Apr 19 '15 at 23:43

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