Windows 8 and 8.1 Forums


Windows Defender Scheduled Scan - Set Up in Windows 8

  1. #50


    Posts : 2
    Windows 8


    Thanks very much for this how to, can't believe they removed this feature in Windows 8...

    I have the same problem above, with the task not running when on battery, I have mine set to the same in you last pic. Was wondering if you had any other ideas?
    As soon as I plug it in the task runs no problems.

      My System SpecsSystem Spec

  2. #51


    Posts : 22,565
    64-bit Windows 10


    Hello carrot, and welcome to Eight Forums.

    I must admit that I'm not sure why the task doesn't run for you when on battery if you have it set to allow it to.
      My System SpecsSystem Spec

  3. #52


    Posts : 2
    Windows 8


    Thanks for the welcome.
    No worries, will see if I can create a new task from scratch, see if that will work.
      My System SpecsSystem Spec

  4. #53


    Posts : 149
    Windows 7 Home Premium on 2 Windows 8.1 on 1


    I had to refresh my computer so I had to schedule this task again. I have it set to run a Quick Scan Daily at 6:00 PM. It does run at that time but I have noticed that it also runs at least one other Quick Scan, usually not too long after I wake up the computer in the morning.

    I could understand it running if the scheduled task is missed as I do have "run task as soon as possible after a scheduled start is missed" but like I said it does run at 6:00 PM. And if it didn't I would expect it to run sometime after 6:00 PM when I am on the computer, not 10:00 AM the next day.

    It did not do this prior to the refresh so it must be how I set up the task but I'm pretty sure I have it set correct and how it was previous. Any ideas?
      My System SpecsSystem Spec

  5. #54


    Posts : 22,565
    64-bit Windows 10


    Hey Bru,

    Not sure. If you like, post screenshots of all your settings for this to see if anything may stand out.
      My System SpecsSystem Spec

  6. #55


    Posts : 149
    Windows 7 Home Premium on 2 Windows 8.1 on 1


    Quote Originally Posted by Brink View Post
    Hey Bru,

    Not sure. If you like, post screenshots of all your settings for this to see if anything may stand out.
    Having trouble with attachments. Hold on while I try to fix.

    OK. I think this shows all the settings. In the first you can see how it ran today at 10:30 AM.

    I also have a task scheduled to update the definitions. I don't think it is causing this though. Today it updated the definitions at 9:58 AM and the Quick Scan then ran at 10:30 AM, even though it had run yesterday at 6:00 PM. I have seen some different ways to set the argument, right now I have "Scan -ScheduleJob" so not sure if that could be it.

    Barring anything obvious in my settings I may have to delete and redo the task and see if it fixes it.

    Click image for larger version

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    Click image for larger version

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    Last edited by Brink; 07 Jan 2015 at 12:39. Reason: attached your uploaded images
      My System SpecsSystem Spec

  7. #56


    Posts : 22,565
    64-bit Windows 10


    I suppose it could be part of the "Automatic Maintenance" schedule.

    Automatic Maintenance - Change Maintenance Settings in Windows 8

    If you like, you could temporarily disable Automatic Maintenance to test and see if it still does the other scan afterwards.

    Automatic Maintenance - Enable or Disable in Windows 8
      My System SpecsSystem Spec

  8. #57


    Posts : 149
    Windows 7 Home Premium on 2 Windows 8.1 on 1


    Quote Originally Posted by Brink View Post
    I suppose it could be part of the "Automatic Maintenance" schedule.

    Automatic Maintenance - Change Maintenance Settings in Windows 8

    If you like, you could temporarily disable Automatic Maintenance to test and see if it still does the other scan afterwards.

    Automatic Maintenance - Enable or Disable in Windows 8
    Thanks may try that. I just checked and it shows scheduled maintenance just ran at 11:46 AM. So it seems it may not be involved. Before the refresh I don't remember ever seeing a last scan run time other than around 6:00 PM but I didn't look that often, so maybe it was always doing it. Scanning two times a day isn't the worst thing, but I still may delete and redo the task to see if it changes anything.
      My System SpecsSystem Spec

  9. #58


    Posts : 14
    Windows 8.1


    This is also relevant for Windows 10 and can be scheduled exactly as described here.
      My System SpecsSystem Spec

  10. #59


    Posts : 22,565
    64-bit Windows 10


    Thank you Bengie.
      My System SpecsSystem Spec

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Windows Defender Scheduled Scan - Set Up in Windows 8
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