A user on my network got married and changed her last name. Now, at the request of management, I need to change her last name on the network. No big deal, accept that her domain login is firstname.lastname
So, I changed her display name, but our AD users tie into our payroll system, and in order for her to login to payroll and record her hours, she needs to login with her domain credentials. Well, payroll updated her last name to the new one, so now I need to change her login name as well.
Can I simply change this on the fly without issue, or will she be locked out of her own My Documents, and will I need to backup her profile and reload all of her favorites, etc once the login name is changed?