1. Joined : Aug 2014
    Posts : 122
    Windows 10 Home
       29 Aug 2016 #1

    Scheduled Defender Definition Updates Not Completing After AU

    Going back to Windows 8 I have created a task to manually update Windows Defender definitions on a schedule. This is fairly straightforward as detailed here Auto update Windows Defender and here http://www.thewindowsclub.com/update...dates-disabled.

    Today I noticed the computer that has updated to AU is not completing the task. I get "The system cannot find the file specified. (0x80070002)".

    The created task and the included argument is the same on all my computers. "“C:\Program Files\Windows Defender\MpCmdRun.exe” -SignatureUpdate​".

    My other computers, which do not have AU, complete the task without error. I am fairly certain the one with AU also completed it prior to the update. AFAICT the file location is named correct and is the same after the AU so why can it not find the file specified?

    It appears Defender is updating definitions on its own (not frequent enough which is why I schedule the definition updates) and I can update them manually through the program so the function is working.
    Last edited by bru; 29 Aug 2016 at 17:58.
      My System SpecsSystem Spec

  2. Joined : Aug 2014
    Posts : 122
    Windows 10 Home
       30 Aug 2016 #2

    I have resolved this. The Action entered has to be modified to:

    "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -SignatureUpdate
      My System SpecsSystem Spec

  3. Joined : Apr 2015
    Posts : 9,178
       30 Aug 2016 #3

    bru said: View Post
    I have resolved this. The Action entered has to be modified to:

    "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -SignatureUpdate
      My System SpecsSystem Spec


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