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Windows Defender Scheduled Scan - Set Up in Windows 8

  1. #1
    Windows Defender Scheduled Scan - Set Up in Windows 8

    Windows Defender Scheduled Scan - Set Up in Windows 8
    How to Set Up Windows Defender to Scan on a Schedule in Windows 8 and 8.1
    Published by Brink is online now
    27 Nov 2012
    Default Windows Defender Scheduled Scan - Set Up in Windows 8

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    Brink's Avatar

    Join Date: Jul 2009
    Posts: 22,631

    How to Set Up Windows Defender to Scan on a Schedule in Windows 8 and 8.1

    information   Information
    This tutorial will show you how to run a quick or full scan of your system with Windows Defender on a schedule you set in Windows 8, Windows RT, Windows 8.1, and Windows RT 8.1.

    You must be signed in as an administrator to be able to do the steps in this tutorial.

    Note   Note
    The Windows Defender scheduled scan will run in the background of Windows 8 at the time you set it to run. When it is running, you will notice the Action Center icon on the taskbar notification area will display the black maintenance icon under it like below. You can click/tap on the Action Center icon, and click/tap on Scheduled Scan link to open Windows Defender to see what it's doing if you like.

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    Click image for larger version

    Here's How:

    1. Press the Windows + R keys to open the Run dialog, type taskschd.msc, and press Enter.

    2. If prompted by UAC, then click/tap on Yes.

    3. In the left pane of Task Scheduler, double click/tap on Task Scheduler Library, Microsoft, and Windows folders to expand them, then open the Windows Defender folder. (see screenshot below)

    Click image for larger version

    4. In the middle pane of Windows Defender, double click/tap on the Windows Defender Scheduled Scan task. (see screenshot above)

    5. Click/tap on the Triggers tab, and click/tap on the New button. (see screenshot below)

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    6. While using On a schedule, select and set when (ex: One Time, Daily, Weekly, or Monthly) and how often you would like the scheduled task to run. Make sure Enabled is checked, and click/tap on OK. (see screenshot below)

    warning   Warning
    It is recommended to use either the Daily or Weekly setting. The schedule will not run if you use the Monthly setting.

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    7. Click/tap on the Actions tab, and click/tap on the Edit button. (see screenshot below)

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    8. Under Program/script, make sure that the default path is wrapped in quotes like below. It's not by default. (see screenshot below)

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    9. To the left of Add arguments (optional), copy and paste the argument in the table below to have Windows Defender run a quick or full scan when scheduled, then click/tap on OK. (see screenshot above)
    NOTE: The default argument is for a quick scan.

    Argument Description
    Scan -ScheduleJob Quick Scan
    Scan -ScheduleJob -ScanType 2 Full Scan

    10. Click/tap on the Conditions tab, and set the Power options for if you want this task to be able to run on AC power, batter power, and able to wake the computer to run, then click/tap on OK. (see screenshot below)

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    11. After a brief pause, you will now notice the Triggers and Next Run Time you set at step 5 and 6 appear for the Windows Defender Scheduled Scan task. (see screenshot below)

    Click image for larger version

    12. You can now close Task Scheduler if you like. Windows Defender will now scan on a schedule you set.

    Tip   Tip
    To make changes to the Windows Defender scheduled scan anytime you like, you can just repeat the steps above, but at step 5 you would click/tap on Edit instead of New.

    That's it,

  2. #1

    Posts : 113
    Win 8 Pro - 64Bit

    When I try to modify the Defender schedule to run monthly I get this error.

    Any ideas on resolving this would be appreciated.

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      My System SpecsSystem Spec

  3. #2

    Posts : 22,631
    64-bit Windows 10

    Hello Pewe,

    Please post back with screenshots of all the same settings in the tutorial to see if we may be able to spot what may be wrong.
      My System SpecsSystem Spec

  4. #3

    Posts : 113
    Win 8 Pro - 64Bit

    Here's the procedure I followed, step by step.

    Click image for larger version
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    Name:  3.JPG
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    Select 'New' in above window

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    Name:  5.JPG
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    Select OK in above window produces error below.

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      My System SpecsSystem Spec

  5. #4

    Posts : 22,631
    64-bit Windows 10

    Hmm, it appears the "Monthly" option is not supported for this. It gives me the same thing. You may need to set it to do a "Weekly" scan instead.
      My System SpecsSystem Spec

  6. #5

    Posts : 113
    Win 8 Pro - 64Bit

    That's what I was thinking - but it seemed strange they would have made that exclusion.

    Thanks for your assistance.
      My System SpecsSystem Spec

  7. #6

    Posts : 22,631
    64-bit Windows 10

    It is odd, but it would be better to do a weekly scan anyways.
      My System SpecsSystem Spec

  8. #7

    Posts : 529
    Windows 8.1 Pro

    hi all i did this and it ran at the time i scheduled it but for some reason it's still trying to run the quick scan at 3 am i think that's the default one set by the computer is there a way to clear all that here is a picture of it. it says i terminated it but i was not up at 3 am so not sure about that.

    Click image for larger version
      My System SpecsSystem Spec

  9. #8

    Posts : 22,631
    64-bit Windows 10

    Hello Tony,

    Yep, you are correct. 3 AM is the default time for the "Automatic Maintenance" to run.

    If you like, the tutorial below can help show you how to change the time and settings for "Automatic Maintenance" to what you like instead.

    Hope this helps,
      My System SpecsSystem Spec

  10. #9

    Posts : 529
    Windows 8.1 Pro

    ok so i set auto maintenance to 12 am but my question is is the auto maintenance going to do the full scan i setup daily in that task? or is that only for the one i setup? and is it going to conflict with the one i setup? .
      My System SpecsSystem Spec

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Windows Defender Scheduled Scan - Set Up in Windows 8
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