I use "User Profile Manager". ForensiT Desktop Management
Works great for Windows 7, and quicker than having to sysprep a machine that will be using QuickPrep. (Works in Windows 8, too, not so much in Windows 10).
Setup your Administrator profile how you want it.
Create a second local account on the machine in the Administrators group.
Restart.
Log on as new account.
Install User Profile Manager and launch.
Copy the Administrator profile, and check the "Default Profile" box.
When complete, uninstall User Profile Manager (make sure to choose the option to purge all data).
Reboot, disable or delete 2nd account.
-Matt