UAC randomly disabled

[M4dn3ss]

I pressed Win+R to open the Run dialog and noticed it said "This task will be created with administrative privileges" and had the little UAC shield icon next to it. Suspicious...
So anyway I opened the UAC settings, and sure enough, it's set to the minimum level, so I moved the slider back up to the top.

However, the whole system still acts as if UAC isn't enabled even after closing Explorer.exe and restarting it. Is it a sneaky virus at work?

 

[UsernameIssues]

Did you restart after changing the UAC setting back to high?

 

[Element7]

Is your user account an administrator account?

I'd recommend setting uac to its highest level and then rebooting. Then I would run a malware check with an updated version of Malwarebytes : Free anti-malware download and run a antivirus check with an updated anti virus program.

 

[M4dn3ss]

After I rebooted everything seems fine... although I'm still wondering how it was disabled in the first place.
Maybe it was just me being sloppy and forgetting to re-enable it after temporarily disabling it, or maybe it wasn't.