Изменения имени учетной записи
Если Вы просто делаете это на регулярном рабочем столе, это, вероятно, потому что диски не заменяемы в горячем режиме. Удаление или добавление жестких дисков к системе, когда один или другой не поддерживает замену в горячем режиме, являются верным способом уничтожить систему и/или диск.
We generally change the full display name, create a new email address for the same account with the old one as an alias, and leave everything else the way it was. This has been standard among places I've worked.
Example: "Mary Jones" gets married and wants everything to say "Mary Smith" now. She logs in as "mjones." We leave her username "mjones," change her full name to "Mary Smith," and create the "Mary.Smith@example.com" email address, leaving "Mary.Jones@example.com" as an alias.
Advantages: Mary continues to receive email from people who have her old address. When she replies, it has her new name, and her new email address based on her new name is the default address. Her computer cheerfully calls her Mary Smith now.
Disadvantages: Sometimes Mary throws a fit and tries to get us to change her login to "msmith." We generally say no, mainly because at one place all the identity management stuff was keyed off username and that would screw stuff up.
I would personally resist creating a new account for someone with a name change. The mailbox, roaming profile, etc.... just no. Give her a new display name and call it a day.
Some applications - IIS in particular - may use identity information cached by Windows. If an account is renamed, that account may not work correctly for that application until the server where the information is cached is restarted.
More information here:
The LsaLookupSids function may return the old user name instead of the new user name if the user name has changed
http://support.microsoft.com/kb/946358