Windows Defender No Longer Performs AutoScan

Page 1 of 2 12 LastLast

  1. Posts : 17
    Windows 10
       #1

    Windows Defender No Longer Performs AutoScan


    Hi There, I use Windows Defender on Windows 10 and have never had an issue. However, late last week it stopped performing its daily auto scans. I have not made any recent changes to my PC and do not use any other real time AV programs. The good news is it still updates its definition files automatically and performs on demand scans without consequence. Thus, I consider this a minor issue but still wonder if others who use Defender have noted this behavior.

    Thanks
      My Computer

  2. TairikuOkami's Avatar
    Posts : 4,681
    Windows Home Dev 21xxx x64
       #2

    Check, if this this task is enabled in Task Scheduler or run CMD as admin and copy/paste:

    schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Enable
      My Computer


  3. Posts : 17
    Windows 10
    Thread Starter
       #3

    Schtasks


    TairikuOkami said:
    Check, if this this task is enabled in Task Scheduler or run CMD as admin and copy/paste:

    schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Enable
    I have checked Task Scheduler but am not sure where to look to find the referenced task. Sorry as I am new to using this utility.

    Please note that I can open Task Scheduler Library - Microsoft - Windows - Windows Defender - The only task not showing as successfully run is Windows Defender Scheduled Scan (It shows (0x2) while all other tasks show (0x0)).The program updates fine and runs on demand without issue. I believe the issue is with MpRunCmd.exe. I would love to know where this file should be located on my pc. It currently resides in C:\Windows\Program Files\Windows Defender. It does not reside in C:\Windows (x86)\Program Files\Windows Defender. This is a 64 bit machine.
      My Computer

  4. TairikuOkami's Avatar
    Posts : 4,681
    Windows Home Dev 21xxx x64
       #4

    HokieMan said:
    Please note that I can open Task Scheduler Library - Microsoft - Windows - Windows Defender - The only task not showing as successfully run is Windows Defender Scheduled Scan (It shows (0x2) while all other tasks show (0x0)).
    Yes, that is it. Try to setup a random scheduled scan, if it runs or not.

    https://support.microsoft.com/en-us/...ndows-defender
      My Computer


  5. Posts : 17
    Windows 10
    Thread Starter
       #5

    TairikuOkami said:
    Yes, that is it. Try to setup a random scheduled scan, if it runs or not.

    https://support.microsoft.com/en-us/...ndows-defender
    I ran the command line text you gave me and then set up a scheduled scan within Task Manager. It ran perfectly!!!
    Thanks so much for your assistance. I am not sure why the task had to be manually scheduled but nonetheless this workaround if effective. Thanks Again!!
      My Computer


  6. Posts : 17
    Windows 10
    Thread Starter
       #6

    HokieMan said:
    I ran the command line text you gave me and then set up a scheduled scan within Task Manager. It ran perfectly!!!
    Thanks so much for your assistance. I am not sure why the task had to be manually scheduled but nonetheless this workaround if effective. Thanks Again!!
    Unfortunately, the auto scan only worked one time after doing this. I will just do one online demand scan each day as there seems to be no solution. Thanks for your help
      My Computer


  7. Posts : 157
    Windows 10 14590 x64 and Win Insider test builds
       #7

    HokieMan said:
    Unfortunately, the auto scan only worked one time after doing this. I will just do one online demand scan each day as there seems to be no solution. Thanks for your help
    :)Thanks for the heads up . I will have to add manual Win Defender scans in my routine of otherwise bad PC habits.

    Among other OEM bloatware short of a clean recovery bloatware free option this PC or maybe win 10 has in general I had to uninstall OEM MaCafee trial bloatware they had turned on and run the cleaner for it on this new OEM HP CTO PC and start up Win defender and download mbam ,Chrome and Firefox ofc.

    ofc MaCafee is not on this SSD I put in here for daily driving on 14905 (for now until the next build ) either
      My Computer


  8. Posts : 17
    Windows 10
    Thread Starter
       #8

    I didn't have any bloatware to remove since I had a clean install of Win 10 on this PC done at a local PC shop. I guess I am not the only one who doesn't seem to be able to get autoscan function with Win Defender to work
      My Computer


  9. Posts : 17
    Windows 10
    Thread Starter
       #9

    Today, I turned off real time protection in Windows Defender and then rebooted my PC. Upon reboot, Defender had turned real time protection back on automatically. I waited awhile and rechecked Defender and noticed that it had finally run an autoscan. Perhaps this is all it took. I hope the autoscan will continue to work properly and I will monitor over the next few days.
      My Computer


  10. Posts : 4
    Win 10 Pro Insider Preview
       #10

    HokieMan said:
    Today, I turned off real time protection in Windows Defender and then rebooted my PC. Upon reboot, Defender had turned real time protection back on automatically. I waited awhile and rechecked Defender and noticed that it had finally run an autoscan. Perhaps this is all it took. I hope the autoscan will continue to work properly and I will monitor over the next few days.
    Any updates on this? Still working?
      My Computer


 
Page 1 of 2 12 LastLast

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 16:47.
Find Us




Windows 10 Forums