Antimalware Client: 4. EDIT: We're also running Sophos on the impacted machines, I've raised a ticket with Sophos to see if they can check their side too or re-create the issue After checking some servers though it seemed to start after a definitions update for Windows Defender after the MpKslacab service was re-installed Between impacted servers, the "Engine Version" of Windows Defender seems to be the only one that matches other impacted servers too.
Antimalware client version: 4. I've checked other servers in our estate and the Engine version is 1. As the folder structure for Defender is locked updating it via Windows Updates isn't working, I'm assuming the files can't be accessed. I'm going to try templating one of our broken servers, removing the Defender feature, rebooting and then adding the feature again to see if that fixes the issue. I'm running Windows Server , I have the same issue with the same Store folder.
This folder had about 1 million files, all under 2K, all dated within the last 24 hours. The only way I could stop creation of the files was disabling Defender's real-time protection. The files took up about 4GB. I deleted them all. Since the servers are virtual machines I added 10GB to each C: drive. Well, guess what? Tonight the disks were full again, this time with over 11GB and 4 million files!
When a server has no disk space things stop working, so obviously this is urgent. For now I've disable real-time protection and deleted the files again.
This is insane! I haven't made any system changes since the last patch Tuesday. Aye, sounds to be the recent Windows Defender definition update maybe. Hoping MSFT picks up on this post and likely others to resolve the issue in next update. Same here on some servers. Any news from MS?
We were hit by ransomeware several months back so have opened some expensive Sophos support monitoring ticket. They advised nothing to do with Sophos. Good morning. Yes, I also have Sophos. Here's what Sophos support said: my comments in [brackets]. You can check by running command prompt as administrator, and run the fltmc command to see what drives are available on the server.
I did this on one server and confirmed Defender AV is no longer installed. Search the community and support articles Windows Windows 10 Search Community member. Thanks, Videolady This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question 5. Report abuse.
Details required :. Cancel Submit. Vijay A. Verma Volunteer Moderator. To scan specific files or folders, select the ones you want, press and hold or right-click them, and then select Scan with Windows Defender Antivirus.
How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. In reply to Vijay A. If I scan 1 file, the result would say "2 files scanned". PDF files I've scanned tend to have a high number of files for some reason for example: 1 PDF could show up as 32 files scanned. Strangely, when I use Windows Defender to scan the exact same files while they're on the flash drive, the total number of files in the scan results will now display correctly.
Note: 1 The Windows 10 computer is part of a network. I don't know if the computer is set up to make duplicates to the OneDrive as a back-up, but even if that's the case, it doesn't make sense as the file I highlighted and scanned is in the Downloads folder, so it should be scanning a single file in one location.
Joined Dec 14, Messages 56, Have you got file history enabled in the backup settings on W If you have, then it is likely that Defender is scanning all backup copies of the file that also exist. Scanning on a USB drive won't have file history enabled. Sorry for the late reply. Some stuff happened which kept me away from the computer for awhile. I checked the settings and it says file history is off, so it doesn't look like this is the cause. On the off chance that all the previously scanned files were larger than expected, I went to the Microsoft website and saved a copy of their logo to test.
I scanned that one small image with Windows Defender and the results still says "2 files scanned". As Seen On. Welcome to Tech Support Guy! Latest posts. Alias addresses won't go into separate folders 1 Viewer Latest: sweetcheekies 4 minutes ago. In Progress Compromised accounts from potential remote hacking 4 Viewers Latest: kevinf80 11 minutes ago.
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