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I'm writing codes which relates to UAC and need to turn it on/off very often.

So that I'm looking for a way to turning it on/off quickly, prefer to use command line.

Please share if you know how to.

ps.

It would be lovely if the solution does NOT require to reboot.

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  • there's a way to script it, but it requires a reboot....i have to go digging if i'm going to find it. it's a regkey toggle i researched a while back.
    – RobotHumans
    Jan 1, 2011 at 4:38
  • Are you just using this code for personal use? Any application that goes around making changes to UAC settings is not going to make users happy. I would never install an application that makes changes to my UAC status unless I specifically told it to.
    – nhinkle
    Jan 4, 2011 at 18:49
  • @nhinkle Yeah, I use it for my own, in debugging task only.
    – Nam G VU
    Jan 5, 2011 at 3:49

3 Answers 3

Reset to default
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Run the following commands with Administrator privileges:

  • Disable UAC

    %windir%\System32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f

  • Enable UAC

    %windir%\System32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 1 /f
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  • 7
    Unfortunately, enabling/disabling UAC will require a reboot no matter what you do. UAC makes Windows behave differently internally, not just to the user.
    – TuxRug
    Jan 1, 2011 at 4:57
  • Though still need to reboot, I'll choose yours command to be the selected answer. Please update to note about running the command under priviledge mode & separate the two answers as two different approuches. Your answers are currently mixed & messy
    – Nam G VU
    Jan 4, 2011 at 14:47
  • Sure. Just FYI - approaches, typo in your comment.
    – Sparx
    Jan 4, 2011 at 17:59
  • @TuxRug UAC disabling is possible without reboot. try my answer. Seems to be an extra key, that asks for prompt.
    – pulsarjune
    Jul 18, 2014 at 6:51
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Ready for me to blow your minds with a hidden "feature"...

To disable UAC for all subsiquent commands in the same session--i.e. if you close the particular script or CMD sessions it resets and you just have to set it again to disable temporarily:

SET __COMPAT_LAYER=WINXPSP3

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  • Does not work on Windows 2016 server
    – langlauf.io
    Jul 4, 2017 at 8:43
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As an aside - If you are a computer administrator, and you still want to keep UAC for standard users, there’s an easy way to turn it off for administrators only.

Just open Local Security Policy from Administrative Tools in the Control Panel.

Then go to Local Policies > Security Options.

Scroll all the way down and find where it says something like: USER ACCOUNT CONTROL: Behavior of elevation prompt for administrators in Admin. Approval Mode;

Double-click it and then click the drop down list and change it to “elevate without prompting.”

UAC should no longer annoy administrators.

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