HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- UAC Enabled: 1
- UAC Disabled: 0
You’ll need to reboot for the setting to take effect, whether enabling or disabling.
Disable UAC the Easy Way with a Downloadable Registry Hack File
Just download, extract, and double-click on the included ReallyDisableUAC-Win7.reg file to disable UAC. You’ll need to reboot for the setting to actually take effect.
There’s also an included registry hack file to re-enable it as well.