When UAC was introduced in Windows Vista, you either had to allow those games to 'Run as Administrator,' so they could write to the Program Files directory, or you could use UAC Virtualization. To fully disable UAC, this is the option you must select. You will never see a UAC prompt requesting your permission or informing you UAC access was granted while the 'Never notify' setting is activated. Never notify me when: Applications can gain UAC access without asking you.You should only use this option if it takes your computer a long time to dim the desktop, which would likely be due to a hardware or driver issue. The dimmed desktop environment is actually a special, secure desktop that running applications can't interfere with. Notify me only when apps try to make changes to my computer (do not dim my desktop): This is the same as the default setting, but Windows will show you a UAC window over your normal desktop environment rather than a UAC window over a dimmed desktop environment.Windows will ask you for permission when you install applications or when those applications want full system access, but you won't see UAC prompts when you change most Windows operating system settings. Notify me only when apps try to make changes to my computer (default): This is the default UAC behavior.This ensures applications can't silently modify operating system settings without asking you. However, you will also have to agree to UAC prompts when you change Windows system settings. Windows will show the standard UAC prompts when you install applications, for example. Always notify me when: This option is even more strict than the default setting.Here are the options you can choose from:

The UAC slider gives you four separate options for choosing User Account Control behavior on Windows.

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