Windows 8 and 8.1 Forums

Auto update Windows Defender

  1. #1

    Posts : 11
    Windows 8

    Auto update Windows Defender

    I have just started to use Windows Defender on W8.1 and cannot see a way to get it to auto update without getting all the other Windows updates to auto update as well. I prefer to manage the general Windows updates myself and decide when (or if) to apply them. However, like other AV products, I would lIke it to update automatically.

    Any thoughts on how to do this - it must be able to do it

      My System SpecsSystem Spec

  2. #2

    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64

    I thought it did by itself? First off, you can set windows updates to only install important updates, and uncheck the box that says give me recommended updates the same way I receive important updates. That way you do not have to install recommended updates. Important updates should be installed no matter what, they protect your computer, etc.

    If you don't want to do that, then see if it auto-updates despite the windows update being off, on its own. Give it a few days. If it does, you got it! If not, there is a high high chance you cannot do anything to keep it updated, as it is a built in windows feature
      My System SpecsSystem Spec

  3. #3

    Posts : 165
    Windows 8

    Quote Originally Posted by jcaswell View Post
    I have just started to use Windows Defender on W8.1 and cannot see a way to get it to auto update
    What exactly you want to update ?

    • Program "Windows Defender" or
    • "Virus signature files" of Windows Defender

    Signature files can be updated with this command:
    "%programfiles%\Windows Defender\MpCmdRun.exe" -SignatureUpdate -MMPC
    Make a shortcut or create a batch file for manually update.
    Or create a job in task scheduler which runs e.g. hourly.
      My System SpecsSystem Spec

  4. #4

    Posts : 1,720
    Windows 8.1 Pro
      My System SpecsSystem Spec

  5. #5

    Posts : 11
    Windows 8

    NiFu - thanks - I want to update the signature files - I am less concerned about the application itself. I will experiment with the task scheduler

    Edwin - I think that you are implying that it automatically updates the signature files anyway. I wonder why it seems not to be doing it, or I wonder if I am I misunderstanding what it is telling me.

    I set auto update to tell me when there are updates available as I would rather control when updates are applied rather than apply then when it may not be adviseable
      My System SpecsSystem Spec

  6. #6

    Posts : 87
    Win 8 and Linux (MINT)

    You can setup Windows Defender to update via a Scheduled Task.

    Windows Defender can be scheduled for daily signature updates using Task Scheduler. I put mine in the Microsoft/Windows/Windows Defender section of Task Scheduler.

    Click on "Create Task", name it what you like (mine is set to update 5 minutes after log on and every 3 hours after that), set the trigger as the time you want it to run every day, or after a specific event....

    For Action browse to Program Files\Windows Defender\MpCmdRun.exe and select it. In "Add arguments" add -SignatureUpdate -MMPC

    The "MMPC" performs the update directly from Microsoft Malware Protection Center. And it runs very quickly.
      My System SpecsSystem Spec

  7. #7

    Posts : 11
    Windows 8

    majulook - thank you - very useful - will do this
      My System SpecsSystem Spec

  8. #8

    Lots of helpful people here!!
      My System SpecsSystem Spec

  9. #9

    I've done this as well, but every time the task runs, it deletes itself afterwards (without updating), and then I attempt to recreate the task, to no avail. Any reason why it would delete itself? I've compared it to the "Scan" task, and all of the triggers and options are the same. The time to run, and the command parameters are the only things that are different.
    Last edited by Jody Thornton; 29 Dec 2015 at 23:09.
      My System SpecsSystem Spec

  10. #10

    I attempted exporting my scheduled scan task to XML, and then importing it as a new task. Step by step, I make changes to several parts of the task (the time to run, the name and the description). Each time I make a change, I save the task and run it (at this point, a full scan task). Then I change the parameters to -SignatureUpdate, which runs a definitions update. The task deletes when I run it.

      My System SpecsSystem Spec

Auto update Windows Defender
Related Threads
My colleague has just received an email from someone with a "WhatsApp" video attached - of course it was not a video, and unfortunately it seems to have auto disabled Windows Defender and loaded PC Optimizer Pro and some form of "Norton" and it is reporting that it is infected with Trojan.Gen.2 We...
windows defender update fail in Windows Updates & Activation
the past week or so I have had a problem with updates for windows defender in win 8.1 failing to work. is it from any of the last updates on patch Tuesday? or another problem. I can get the update from a windows site and install it from that but not from defender its self or windows update thanks
Having an issue with kb2267602 It keeps popping up after installing. Henry
Solved Auto Maintenance and Defender in System Security
I have set Defender to do a quick scan in task scheduler for 1 AM. Auto Maintenance is set for 3 AM. I got up this morning to check Defender to verify the newly created quick scan and it was successful but stated it ran at 3 AM. Since I have allowed system to 'wake up' from sleep to do the quick...
Solved Windows Defender manual update in System Security
Initially on Win7, I was manually updating Security Essentials when was offline from this link: How to manually download the latest definition updates for Microsoft Security Essentials You choose x86 or x64 and go from there. What's not mentioned, is that you can use the same links to...
Solved windows defender auto scan in System Security
hi i am trying to stop defender doing auto scans which seem to happen about 7 pm aus time which screws up my tv recordings for some reason i would like to get it to scan early morning but cannot seem to find where to change the time it scans in win 8 thanks brad
Solved I canīt update my windows defender in Windows Updates & Activation
Iīve got a dial up conection thru a proxy and i canīt update the windows defender when I try show this error message: 0x8024402c Windows defender couldnīt install the definition updates because the proxy server or taget server name canīt be resolve. Any help about this?
Eight Forums Android App Eight Forums IOS App Follow us on Facebook