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.

To configure UAC settings, open the Start menu, type user account control, and click to open User Account Control settings.

UAC was one of Vista's most annoying features, and it's still hanging around like a bad smell in Windows 7. It is much less intrusive though -- here's how to customise it ...

Running the app through the Command Prompt can bypass the "This App has been Blocked by your System Administrator" message. However, you need administrator privileges to execute the command.

If you receive a This app has been blocked for your protection message in Windows 11/10, fix it by using REGEDIT, GPEDIT, CMD or SmartScreen.

Click Apply.; Click OK.; Once you've completed the steps, when you get a User Account Control prompt, you'll still be able to access the desktop and other apps.