We have a few users within AD, who had their AD accounts misspelled early on. The previous admins cleaned up the user's display names but left their User Logon Name misspelled.
What are the consequences of changing the User Logon Name in AD? Will it create a new profile under C:\Users the next time that user logs onto the domain? How does this impact Exchange 2010/2013 accounts?
Domain: Windows 2008 R2 native
Client: Windows 7 (64 bit)