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:
|
1 |
"%programfiles%\windows defender\mpcmdrun.exe" -signatureupdate -http |
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
“a terminal window”, just any terminal window? Does “a terminal window” have a name?
Yeah, it’s called command prompt.
Thank’s! Successfull!
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’
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.
brilliant. Such an easy fix.
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
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
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
If it fails, run ‘netsh winhttp show proxy’… if that is blank then ‘netsh winhttp set proxy yourproxy:your port’.. that resolved this error for me.
Thanks, fixed my problem.
Yeah – hit your windows button, type “cmd”
Alternatively, open Notepad, paste that one line of code, then save the file as DefenderUpdate.bat on the Desktop.
You can then double-click that batch file at any time to run the code
Well I’ll be! This works a treat.
“%programfiles%\windows defender\mpcmdrun.exe” -signatureupdate -http
I’d tried plenty of other stuff on a fresh Win 10 install and nothing had worked.
Thank you!
This worked! After hours of driving myself crazy with other “fixes.” THANK YOU!
Thanks!!!!