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  1. Join Date : Aug 2016
    Posts : 28
    windows 10 Home
       23 Aug 2016 #1

    Defender not Running Regular Scan


    I updated to Win 10 Home 1607 last Friday Aug 19 from Win7.
    However Win10 loaded with MSE. I managed to uninstall, then I enabled Defender.

    I read that Automatic maintenance will schedule regular scans for Defender. Is this correct? This has not happened since last Friday?
    Do I need to setup a Scheduled Task? Or is it taken care by Automatic maintenance?

    How do I know if Automatic Maintenance is working? Or maybe something wrong with Defender?
    In Control Panel> System> Security> Maintenance and under ' allow scheduled maintenance to wake up my computer...' there is no message saying when Automatic maintenance last ran? Should there be?
    Can I test Automatic maintenance is working?

    PS I notice in 'Antivirus, Firewalls, Security' forum somebody has just posted that Defender has not scanned since end of last week? Maybe this is my issue?
      My System SpecsSystem Spec


  2. Join Date : Oct 2014
    In a house with a crazy cat trying to kill me
    Posts : 11,438
    Win 7 32, Win 7 64 Pro, Win 8.1 64 Pro, Win 10 64 Education Edition
       23 Aug 2016 #2

    There are some good tutorials on this site showing how to set up Defender. One link posted by Brink (in 8 forums) shows how to set up the scheduled scan. This should apply to Win 10 also. Being that you uninstalled MSE, you may have to reset the scheduling in the task scheduler.

    Windows Defender Scheduled Scan - Set Up in Windows 8

    Limited Periodic Scanning - Turn On or Off in Windows 10 - Windows 10 Forums

    Windows Defender Real-time Protection - Turn On or Off in Windows 10 - Windows 10 Forums

    I hope this helps.

    Jeddie said: View Post
    PS I notice in 'Antivirus, Firewalls, Security' forum somebody has just posted that Defender has not scanned since end of last week? Maybe this is my issue?
    Yes, it could be a Win issue. Check your settings in the task scheduler. Also, sometimes turning off Defender, rebooting & then turning it on & rebooting again solves the issue.
    Last edited by Borg 386; 23 Aug 2016 at 08:26.
      My System SpecsSystem Spec


  3. Join Date : Aug 2015
    Posts : 16
    Windows 10
       25 Aug 2016 #3

    I had to run a script in Command Prompt (Admin) and then set up a Windows Defender Auto Scan in Task Scheduler to get things back to working properly. I honestly believe the recent Anniversary Update somehow broke my Windows Defender Auto Scan that has always worked properly in the past. If interested, see the thread I started about this issue and the script is listed there.
      My System SpecsSystem Spec


  4. Join Date : Aug 2016
    Posts : 28
    windows 10 Home
       28 Aug 2016 #4

    My scheduled scan is still not running regulary. I set a scheduled task for 8pm, but, sometimes it runs and sometimes it doesn't? When it does run it is run at some time other than 8pm?

    I doubled checked the task and noticed under 'Actions', the Program/script says C:\Program Files\Windows Defender\\MpCmdRun.exe


    Firstly there are no quotation marks around C:\Program Files\Windows Defender\\MpCmdRun.exe?

    Secondly there are 2 slashes between Defender and MPCmdRun.exe?

    This doesn't seem right to me? (I have never set a scheduled task ever before)
    Can someone critique this setting?
      My System SpecsSystem Spec


  5. Join Date : Aug 2015
    Posts : 16
    Windows 10
       28 Aug 2016 #5

    Jeddie said: View Post
    My scheduled scan is still not running regulary. I set a scheduled task for 8pm, but, sometimes it runs and sometimes it doesn't? When it does run it is run at some time other than 8pm?

    I doubled checked the task and noticed under 'Actions', the Program/script says C:\Program Files\Windows Defender\\MpCmdRun.exe

    I am not sure about the quotation marks as I have removed the scheduled scan from my PC because it was so erratic. Nevertheless, I am sure the double slashes in not correct. Unfortunately,


    Firstly there are no quotation marks around C:\Program Files\Windows Defender\\MpCmdRun.exe?

    Secondly there are 2 slashes between Defender and MPCmdRun.exe?

    This doesn't seem right to me? (I have never set a scheduled task ever before)
    Can someone critique this setting?
    I am quite sure the double slashes is not correct. I can't recall about the quotes. Since the scheduled task for doing this scan was so erratic and rarely worked on my pc, I have removed it so everything is back like it was before the automatic scans stopped working. My research seems to indicate the automatic scans by Defender stopped working with build 1607. I hope MS is aware of this and a fix will be forthcoming. Once such a fix comes (if it ever does), I wanted the settings back to default with no scheduled scan entered. It's really not dependable at all at least in my experience. If no fix comes, I will just get in the habit of manually scanning Windows Defender which is a return to the way it used to be in days gone by.
      My System SpecsSystem Spec


  6. Join Date : Oct 2014
    In a house with a crazy cat trying to kill me
    Posts : 11,438
    Win 7 32, Win 7 64 Pro, Win 8.1 64 Pro, Win 10 64 Education Edition
       28 Aug 2016 #6

    Have a look at this post & see if any info here can help.

    Solved Windows Defender No Longer Performs AutoScan - Windows 10 Forums
      My System SpecsSystem Spec


  7. Join Date : Apr 2015
    Posts : 9,115
    W10Prox64
       28 Aug 2016 #7

    Jeddie said: View Post
    My scheduled scan is still not running regulary. I set a scheduled task for 8pm, but, sometimes it runs and sometimes it doesn't? When it does run it is run at some time other than 8pm?

    I doubled checked the task and noticed under 'Actions', the Program/script says C:\Program Files\Windows Defender\\MpCmdRun.exe


    Firstly there are no quotation marks around C:\Program Files\Windows Defender\\MpCmdRun.exe?

    Secondly there are 2 slashes between Defender and MPCmdRun.exe?

    This doesn't seem right to me? (I have never set a scheduled task ever before)
    Can someone critique this setting?
    Here's mine, and it's working:
    Click image for larger version. 

Name:	defender-scan01.PNG 
Views:	3 
Size:	9.1 KB 
ID:	98624


    Program/script = "%ProgramFiles%\Windows Defender\MpCmdRun.exe" Scan - ScheduleJob
    Argument = Scan -ScheduleJob
      My System SpecsSystem Spec


  8. Join Date : Aug 2015
    Posts : 16
    Windows 10
       28 Aug 2016 #8

    Finally, my Windows Defender ran an autoscan again today. The only thing I had done differently was a suggestion from an earlier post in this thread by Borg 386. I turned off real time protection in Defender and restarted my PC. Upon reboot, Windows Defender real time protection had turned itself back on. I waited awhile, rechecked Defender, and it had run an autoscan. I hope the Defender autoscans continue to work and will monitor this over the next few days.
    Last edited by HokieMan; 28 Aug 2016 at 15:31.
      My System SpecsSystem Spec


  9. Join Date : Aug 2016
    Posts : 28
    windows 10 Home
       29 Aug 2016 #9

    simrick said: View Post
    Here's mine, and it's working:
    Click image for larger version. 

Name:	defender-scan01.PNG 
Views:	3 
Size:	9.1 KB 
ID:	98624


    Program/script = "%ProgramFiles%\Windows Defender\MpCmdRun.exe" Scan - ScheduleJob
    Argument = Scan -ScheduleJob
    @simrick

    I tried your Program / script and unfortunately Defender did not run. Got the (0x2) error.

    Can you tell me your settings in your ' General', 'Conditions' and "Settings'?
      My System SpecsSystem Spec


  10. Join Date : Apr 2015
    Posts : 9,115
    W10Prox64
       29 Aug 2016 #10

    Jeddie said: View Post
    @simrick

    I tried your Program / script and unfortunately Defender did not run. Got the (0x2) error.

    Can you tell me your settings in your ' General', 'Conditions' and "Settings'?
    Yes, sure.
    Could be a confusion between an Operational Code and an Event Error Code? I get an Operational Code of (2) or (0x2). Defender shows it completed the task successfully.

    Click image for larger version. 

Name:	defender-scan08.PNG 
Views:	1 
Size:	105.8 KB 
ID:	98772



    Click image for larger version. 

Name:	defender-scan02.PNG 
Views:	89 
Size:	36.3 KB 
ID:	98778



    Click image for larger version. 

Name:	defender-scan03.PNG 
Views:	89 
Size:	19.7 KB 
ID:	98774



    Click image for larger version. 

Name:	defender-scan04.PNG 
Views:	89 
Size:	17.4 KB 
ID:	98775



    Click image for larger version. 

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Views:	89 
Size:	9.4 KB 
ID:	98776



    Click image for larger version. 

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Views:	90 
Size:	16.1 KB 
ID:	98777

    Operational Code: Contains a numeric value that identifies the activity or a point within an activity that the application was performing when it raised the event. For example, initialization or closing.
    Event Properties
    Attached Thumbnails Attached Thumbnails defender-scan07.PNG  
      My System SpecsSystem Spec


 
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