To change a user's account type
You must have a computer administrator account to change a user's account type.
Open User Accounts in Control Panel.
Click the name of the account you want to change.
Click Change the account type.
Click Computer administrator or Limited, depending on the type of account you want, and then click Change Account Type.
To open User Accounts, click Start, click Control Panel, and then click User Accounts.
As a computer administrator, you can change your own account type to limited, but only if there is another user on the computer with a computer administrator account. The computer cannot be without an administrator.
For more information about user accounts, click Related Topics.