Manually update Windows Defender to fix update failures KB2267602 (Definition 1.213.6196.0) – Error 0x80070643

On a few of my Windows 10 computers, Windows Defender was failing to update properly through Windows Update.  I found that you can manually update Windows Defender using this command from a terminal window:

I found this instruction in the comments of this post: https://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_updating/definition-update-for-windows-defender-kb2267602/d0d06c7a-fd70-4f27-94a6-9320d8114768

8 thoughts on “Manually update Windows Defender to fix update failures KB2267602 (Definition 1.213.6196.0) – Error 0x80070643”

  1. It blows my mind that the fix is that easy and yet they can’t just run that command in the UI that does the updates. Instead they inconvenience and slow down thousands of customers putting a drag on productivity all over the world’

  2. This is awesome, thanks. just hit this on WinSvr 2016 install.
    @Bill – typical silly MSFT stuff. I can only shake my head and keep moving.

  3. This failed with the following:
    C:\WINDOWS\system32>”%programfiles%\windows defender\mpcmdrun.exe” -signatureupdate -http
    Signature update started . . .
    ERROR: Signature Update failed with hr=800700C1
    CmdTool: Failed with hr = 0x800700C1. Check c:\tmp\MpCmdRun.log for more information

  4. The cmd failed on my system which has Defender update issues. MpCmdRun.log
    MpCmdRun: Command Line: “C:\Program Files\windows defender\mpcmdrun.exe” -signatureupdate -http
    Start Time: ‎Tue ‎Jul ‎31 ‎2018 15:28:23

    MpEnsureProcessMitigationPolicy: hr = 0x1
    Start: MpSignatureUpdate()
    Calling MpUpdateStartEx with option 0x9
    Update started
    Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?LinkID=851034&clcid=0x409&arch=x64&eng=0.0.0.0&avdelta=0.0.0.0&asdelta=0.0.0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24&ostype=0&signaturetype=0&beta=0&plat=4.18.1807.18075)…
    Download Started…
    Time Info – ‎Tue ‎Jul ‎31 ‎2018 15:29:16 Download Completed
    Installation Started…
    Time Info – ‎Tue ‎Jul ‎31 ‎2018 15:30:03 Installation Completed
    Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?LinkID=870379&clcid=0x409&arch=x64&eng=0.0.0.0&avdelta=0.0.0.0&asdelta=0.0.0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24&ostype=0&signaturetype=0&beta=0&plat=4.18.1807.18075)…
    Update failed with hr: 0x80004005
    Installation Completed
    Update completed with hr: 0x80004005
    ERROR: Signature Update failed with hr=80004005
    MpCmdRun: End Time: ‎Tue ‎Jul ‎31 ‎2018 15:30:04

    1. MpCmdRun: Command Line: “C:\Program Files\windows defender\mpcmdrun.exe” -signatureupdate -http
      Start Time: ‎Tue ‎Jul ‎31 ‎2018 15:28:23

      MpEnsureProcessMitigationPolicy: hr = 0x1
      Start: MpSignatureUpdate()
      Calling MpUpdateStartEx with option 0x9
      Update started
      Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?LinkID=851034&clcid=0x409&arch=x64&eng=0.0.0.0&avdelta=0.0.0.0&asdelta=0.0.0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24&ostype=0&signaturetype=0&beta=0&plat=4.18.1807.18075)…
      Download Started…
      Time Info – ‎Tue ‎Jul ‎31 ‎2018 15:29:16 Download Completed
      Installation Started…
      Time Info – ‎Tue ‎Jul ‎31 ‎2018 15:30:03 Installation Completed
      Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?LinkID=870379&clcid=0x409&arch=x64&eng=0.0.0.0&avdelta=0.0.0.0&asdelta=0.0.0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24&ostype=0&signaturetype=0&beta=0&plat=4.18.1807.18075)…
      Update failed with hr: 0x80004005
      Installation Completed
      Update completed with hr: 0x80004005
      ERROR: Signature Update failed with hr=80004005
      MpCmdRun: End Time: ‎Tue ‎Jul ‎31 ‎2018 15:30:04

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