Microsoft has released a new hotfix that fixes a user profile folder being incorrectly named. The specific scenario is:
- "...You have a client computer that is running Windows 7 or Windows Server 2008 R2 in an Active Directory domain.
- You enable the User must change password at next logon option for the domain users.
- You log on to a client computer by using a user principal name (UPN).
- The user profile folder is created on the client computer.
In this scenario, the format of the user profile folder name is displayed as follows: User name@domain name..."
You can find the hotfix to fis this issue here: http://support.microsoft.com/kb/2748437/en-us?sd=rss&spid=14134