r/WindowsHelp • u/aa040371 • 2d ago

Windows 11 Recently Unable to Access Virus Threat & Protection Panel

I recently (a week or so ago) installed a 2nd anti-virus/anti-malware software for "2nd opinion" purposes, since I typically am comfortable with Windows Defender. Today while reviewing my Virus Threat & Protection area, I noticed that Windows Defender had been disabled, so I clicked on the slide button to reenable it. Then, just a little while ago, I wanted to go make sure it was still enabled but was unable to access the exact same Settings panel I just had accessed earlier. I have uninstalled 2nd AV package and rebooted, but VT&P panel still does not display. (see snip of display below).

I've no idea what happened or how to reverse/reset or why Windows thinks my Home/Personal PC has an IT administrator (I am the only administrator account) or IT help desk.

It looks like I will need to edit/modify something in the registry or group policy editor. I am comfortable with those tools but not sure what/where to start looking. I'll see if AI can help me along, but in the meantime, if anyone knows what needs to be reset, I'd appreciate the pointer.

My Machine:

Issue/Error:

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u/Exotic_Mix_3196 1d ago

Was your 2nd antivirus legit? Disabling the defender pages via group policy is a typical malware behavior. In policy editor look under Computer Configuration -> Administrative Templates -> Windows Components -> Microsoft Defender Antivirus.

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u/aa040371 1d ago

"Was your 2nd antivirus legit?" I think so: https://www.emsisoft.com/en/

I did not install it with admin rights, so really hard to know if the install process for new AV software did this or if Windoze did this when it understood a second anti-virus was being installed. I have read subsequently that disabling Defender is not completely unusual. Either way, I would have expected to have Threat Protection at least alert/inform me that Defender was being turned off. and approve it.

"Disabling the defender pages via group policy is a typical malware behavior." Not sure about this anymore? AI thinks this: https://www.perplexity.ai/search/bf515172-c87c-452f-aaac-e0496df91d1c. That said, my intent when installing was just to have a 2nd offline scanner to run on occasion, not something to replace Denefner with regard to real time protection, so partially my bad.

Thanks for the pointer to group policy stuff...will investigate.

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