Disable User Account Control
How do I stop the User Account Control dialog from nagging me?
To disable UAC you must first log on as a member of the local Administrators group.
Click Start, and then click Control Panel.
In Control Panel, click User Accounts, then in the User Accounts window, click User Accounts.
In the User Accounts tasks window, click Turn User Account Control on or off.
If UAC is configured in Admin Approval Mode, the User Account Control message appears. Click Continue then clear the "Use User Account Control (UAC) to help protect your computer" checkbox, and click OK.
Click "Restart Now" to apply the change immediately, otherwise click "Restart Later" and close the User Accounts tasks window.