User Account Control, or UAC, is a security mechanism built into Windows. Here's how to change its protection level and whether you should disable it.

If you encounter the error This App can’t be activated when UAC is disabled on your Windows computer, do this to fix the issue.

Choose User Accounts. If you see it again on the next page, select it once more. Select Change User Account Control settings. Drag the button to the very bottom, to Never notify, and then select OK.

There is no option to remove user account control from a specific program, so you need to disable the UAC for all apps. To do so, open the Control Panel and go to User Accounts > User Accounts ...

The first thing I did after I installed Windows Vista was disable User Account Control—it’s pretty much the most annoying OS feature I’ve ever dealt with. Microsoft’s Chief Security ...

User Account Control's default state is to be enabled. And for a good reason. Under normal circumstances, you'd get a prompt to confirm various actions before they can take place on your computer.