Turn On or Off Microsoft Defender Periodic Scanning in Windows 10  

Page 1 of 3 123 LastLast
    Turn On or Off Microsoft Defender Periodic Scanning in Windows 10

    Turn On or Off Microsoft Defender Periodic Scanning in Windows 10

    How to Turn On or Off Periodic Scanning with Microsoft Defender Antivirus in Windows 10
    Published by Category: Security System
    05 Nov 2020
    Designer Media Ltd
     

    How to Turn On or Off Periodic Scanning with Microsoft Defender Antivirus in Windows 10


    Starting with Windows 10 build 14352, a new security setting called Limited Periodic Scanning will be included.

    Limited Periodic Scanning is a new security setting you can choose to turn on if you use an antivirus program other than Microsoft Defender. This setting can provide an additional line of defense in scanning and detecting malware on your device. Each month Microsoft’s Malicious Software Removal Tool detects malware on 1 to 2 million devices, even those running other antivirus software. The Limited Periodic Scanning setting can be turned on for unmanaged devices.

    When turned on, Windows 10 will use the Microsoft Defender scanning engine to periodically scan your PC for threats and remediate them. These periodic scans will utilize Automatic Maintenance—to ensure the system chooses optimal times based on minimal impact to the user, PC performance, and energy efficiency—or customers can schedule these scans. Limited Periodic Scanning is intended to offer an additional line of defense to your existing antivirus program’s real-time protection.

    When Windows 10 Limited Periodic Scanning is turned ON, and even if you are NOT using Microsoft Defender for your real-time protection, the Microsoft Defender user interface and History tab will allow you to view any additional threats that have been detected.

    When a threat is found, Microsoft Defender will notify you with a Windows 10 notification. In most cases, Windows Defender will also automatically take action on the threat. Clicking on the notification will open Microsoft Defender where you can further review the threat that was found and the action that was automatically taken.

    Clicking the notification will take you to Windows Security, where additional actions (if required) can be taken and applied.

    To read more about Limited Periodic Scanning, see:

    This tutorial will show you how to turn on or off Periodic Scanning with Microsoft Defender Antivirus when you have a 3rd party antivirus program installed in Windows 10.

    You must be signed in as an administrator to be able to turn on or off Limited Periodic Scanning.




    Here's How:

    1 Open Windows Security, and click/tap on the Virus & threat protection icon. (see screenshot below)

    Turn On or Off Microsoft Defender Periodic Scanning in Windows 10-microsoft_defender_periodic_scanning-1.png

    2 Click/tap on Microsoft Defender Antivirus options to expand it open, and turn On or Off (default) Periodic scanning for what you want. (see screenshots below)

    Turn On or Off Microsoft Defender Periodic Scanning in Windows 10-microsoft_defender_periodic_scanning-2.png Turn On or Off Microsoft Defender Periodic Scanning in Windows 10-microsoft_defender_periodic_scanning-3.png

    3 If prompted by UAC, click/tap on Yes to approve.

    4 You can now close the Windows Defender Security Center if you like.


    That's it,
    Shawn




  1. meh
    Posts : 69
    Windows 9 (aka Windows 10)
       #1

    I can't get this setting to stay on. When I enable it, I get the notification saying that periodic scanning is enabled. If I run WD, the interface tells me that it's enabled. But within minutes, the WD service is shut down, and the limited periodic scanning setting becomes disabled again. If I look at MpCmdRun.log, I see:

    -------------------------------------------------------------------------------------
    MpCmdRun: Command Line: "C:\Program Files\Windows Defender\mpcmdrun.exe" -wddisable
    Start Time: ‎Mon ‎Oct ‎31 ‎2016 17:44:21


    WDDisable
    MpWDEnable(FALSE) finished.
    MpCmdRun: End Time: ‎Mon ‎Oct ‎31 ‎2016 17:44:24
    -------------------------------------------------------------------------------------


    -------------------------------------------------------------------------------------
    MpCmdRun: Command Line: "C:\Program Files\Windows Defender\mpcmdrun.exe" -wddisable
    Start Time: ‎Mon ‎Oct ‎31 ‎2016 17:44:24


    WDDisable
    ERROR: MpWDEnable(FALSE) failed (800106BA)
    MpCmdRun: End Time: ‎Mon ‎Oct ‎31 ‎2016 17:44:24
    -------------------------------------------------------------------------------------
    I saved a phony EXE file with the EICAR string a couple weeks ago, and I have been toying with this crap feature since. I have even run maintenance manually. The EXE hasn't been touched, of course.

    I wonder if my AV (Avira Antivirus Pro) is disabling this setting for some stupid reason. It seems that Avira shuts down the WinDefend service every time it checks for updates. Fun stuff.
      My Computer

  2. Brink's Avatar
    Posts : 56,295
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #2

    Hello meh, :)

    It's not uncommon to have WD disabled or parts of it disabled when you have a 3rd party AV program installed.
      My Computers


  3. meh
    Posts : 69
    Windows 9 (aka Windows 10)
       #3

    I understand that, but this is not enabling WD's real-time scanning functionality, but rather only background scans. They shouldn't be turning that off behind the scenes. And even if they do, they should TELL THE USER. Or at least LOG IT. But they don't, because that's too much like doing things the right way.

    Also, Avira doesn't even say that WD should be disabled:

    Q: Should I deactivate Windows Defender, if I use Avira Antivirus?
    A: We recommend to deactivate the Windows Defender only if one of the Avira Antivirus modules remain inactive after the product installation.


    I don't have issues with Avira components being disabled (except for the useless mail protection function, which I have manually disabled), and I don't have WD errors in my event log.

    Thanks.
      My Computer


  4. meh
    Posts : 69
    Windows 9 (aka Windows 10)
       #4

    Well, well. I added "DisableAntiSpyware" (DWORD) to "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" and left it set to 0, and the "limited periodic scanning" feature has so far remained enabled. I love how I get smarter the moment I post a question on a forum.
      My Computer

  5. Brink's Avatar
    Posts : 56,295
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #5
    Last edited by Brink; 08 Jun 2017 at 09:00. Reason: updated link
      My Computers


  6. meh
    Posts : 69
    Windows 9 (aka Windows 10)
       #6

    With "Limited Periodic Scanning" enabled, Windows Defender never scans my PC automatically. Instead, I frequently see notifications in Action Center saying "Windows Defender needs to perform a scan" (or something very similar to that). I click the message and WD appears and performs its scan.

    I'm using a third-party AV, of course, otherwise I would not have "Limited Periodic Scanning" enabled.

    Is there a way to make it scan automatically?
      My Computer

  7. Brink's Avatar
    Posts : 56,295
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #7

    Hello meh, :)

    You might see if changing your Automatic Maintenance hours to a time you will have the PC running may help it scan more often or more reliably.
      My Computers


  8. meh
    Posts : 69
    Windows 9 (aka Windows 10)
       #8

    Thanks. I have had it set for 3PM, and my PC is usually on at that time.
      My Computer

  9. Brink's Avatar
    Posts : 56,295
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #9

    It sounds like something may be interfering with the scan from running on schedule. As a test, you might see if setting your own scheduled scan may work better.

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


 
Page 1 of 3 123 LastLast

Tutorial Categories

Turn On or Off Microsoft Defender Periodic Scanning in Windows 10 Tutorial Index Network & Sharing Instalation and Upgrade Browsers and Email General Tips Gaming Customization Apps and Features Virtualization BSOD System Security User Accounts Hardware and Drivers Updates and Activation Backup and Restore Performance and Maintenance Mixed Reality Phone


  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 03:58.
Find Us




Windows 10 Forums