Windows 10 Virus and Threat Protection turned off by itself

  • Thread starter Thread starter Erik{P}
  • Start date Start date
E

Erik{P}

System info:


Windows 10 Pro x64

Version 1909

Build 18363.720

Real-time antivirus: Avira Free Antivirus

On-demand scanner: Malwarebytes Free



Hello everybody,


(Apologies for the long post, I just want to make sure I get all the details out)


A couple of days ago the Virus and Threat Protection on my system turned off automatically, and I noticed it right away since I sitting at the computer. The alert in the notifications was something akin to "Real-time protection turned off". I wasn't browsing weird websites, clicking on links or installing anything at the time.


My real-time protection (Avira free antivirus) said it was still on. Also, at the time of the incident I was running a manual full scan with Malwarebytes, which is my on-demand scanner (I run it once a week). When I clicked on the flag notification to bring up Windows Security the interface was blank and looked broken. I let my scan with Malwarebytes finish and it found nothing. Also, overnight I had just done a full scan with Avira and it also found nothing.


I restarted my PC. After Windows finished loading, Windows Security asked me to manually restart Defender (if I remember correctly, I had to hit restart on two things). And then everything looked normal. The only other thing I noticed was that a file named msmpeng.exe asked for permission through my firewall (I have Windows Firewall Control (WFC) which lets me allow or block apps trying to make a connection). WFC said it was signed by Microsoft and a little bit of googling revealed that it was related to Defender, so I allowed it.


Afterwards, thinking that some type of software conflict occurred, I uninstalled both Avira and Malwarebytes, and reinstalled Malwarebytes. Then I completed a few scans to be on the safe side:


1) I scanned my C drive with Malwarebytes in Safe Mode

2) I used the Windows Defender Offline scan

3) I did a full scan with Malwarebytes (normal mode)

4) I did a full scan with Windows Defender (normal mode)


None of the scans found anything.


So, my question is, should I just assume something buggy happened with Windows Defender and it had to be restarted, or are there other things I should check/tools I should use to verify that nothing malicious occurred? I know that there are other posts similar to this with different recommendations, but I also don't want to overdo it if I don't have to (i.e. potentially make things worse).


Thank you for reading this far and for any help/suggestions you may have. Feel free to ask any questions, get more details or have me repeat any of the things I've already done.


Thanks!


Erik

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