Windows 10: Virus protection

I did a clean boot and restarted my computer, when it turned back on file explorer was open saying that both my anti virus software's were disabled. I cannot enable the Microsoft built in anti virus it just says there was an unexpected problem and the other software wont even open. How do I fix this? Any help would be amazing thank you.

:)

 

Virus Protection

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1. Avira AntiVir Personal Classic Edition
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1. ZoneAlarm Free
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Nonstop alerts about virus protection

Hi,

Thank you for posting in Microsoft Community and being a part of Windows 10.

I understand your concern about accessing the operating system with the security notification on your device. We will help you with this issue.

Do let us know the following to assist you better with this issue:

• Have you installed any third-party anti-virus software on your device?
• Have you made any changes to the operating system prior to this issue?
• What is the complete error code/ error message of this issue?
• When exactly you get this error pop-up?

Try the below troubleshooting steps and check if it helps.

Step 1: If you have installed any third-party anti-virus software, I suggest you to disable it and check if it issue persists.

NOTE: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software,
you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

If the issue still persists, I suggest you to uninstall the third-party anti-virus software.

Step 2: I suggest you to run Windows Defender on your device and check if it helps.

Windows Defender is malware protection that is included with and built into Windows 10. This software helps identify and remove viruses, spyware, and other malicious software. So, you do not need to install any third party antivirus applications.

http://windows.microsoft.com/en-in/windows-10/getstarted-protect-your-pc

Hope it helps. Get back to us with an updated status of this issue for further assistance.

 

Cannot turn on Windows Defender virus protection

I had the same sort of symptoms. In the Windows Security Center, under Virus and threat protection, it said "Your virus & threat protection is managed by your organization."





I note you mentioned the Registry Keys under HKLM/SOFTWARE/Microsoft/Windows Defender. Nice spotting, but it seems like there is another key that is causing the problem for some users.

Steps to a solution:

1. Press the Windows key and type "regedit"
   
2. On the regedit icon that appears, right-click and select Run as Administrator.
   
3. Navigate to the folder located at HKLM\SOFTWARE\Policies\Microsoft\Windows Defender (You can paste this into the address box at the top of the window, or navigate manually using the side directory structure)
   
4. In this folder, there are probably two keys. Right-click and Delete the DisableAntiSpyware key.
   
5. Exit regedit, and return to the Windows Defender settings screen (refresh it if necessary). Windows Defender should have the scan options available and working.
   

Solution adapted from here, with a much more detailed solution here.