How to Change a Windows Login Name

Windows XP
1. Log in to your computer's administrator account or the account you wish to alter.
2. Click the 'Start' button and open the Control Panel.
3. Select the 'User Accounts' option.
4. Choose to 'Change an account' and select the account you want renamed.
5. Choose the 'Change the name' option, type a new name into the text box and click 'Change Name.'
Windows Vista/Windows 7
6. Log into your computer's administrator account or the account you wish to alter.
7. Click the 'Start' button and open the Control Panel.
8. Select 'User Accounts and Family Safety.'
9. Click the 'User Accounts' option and select the option to 'Change your account name' to edit the current account. Clicking the 'Manage another account' option lets you select another account if logged in as your computer's administrator.
10. Type a new name into the text box and click 'Change Name.'