Windows 10: Signature Update failed with hr=80070645

Signature Update failed with hr=80070645

:)

 

Windows Defender ERROR: Signature Update failed with hr=80070241

I can not update Windows Defender signatures on Windows 10, the error code is 0x80070241

Here is the content of my "MpCmdRun.log"

-------------------------------------------------------------------------------------

MpCmdRun: Command Line: "C:\Program Files\windows defender\mpcmdrun.exe" -signatureupdate -http

Start: MpSignatureUpdate()

Update started

Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?Li...0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24)...

Download Started...

Download Completed

Installation Started...

Update failed with hr: 0x80070241

Installation Completed

Search Started (HTTP) (Path: https://go.microsoft.com/fwlink/?Li...0.0&prod=77BDAF73-B396-481F-9042-AD358843EC24)...

Installation Completed

Update completed with hr: 0x80070241

ERROR: Signature Update failed with hr=80070241

-------------------------------------------------------------------------------------

The KB2267602 installation is also failed, with error code 0x80070643

Any ideas how to fix it?

 

Adding signature...

Hi kathy,

Welcome to Microsoft Community and thank you for your interest in Windows 10.

I will definitely assist you, as per your query.

Please follow the below steps to add signature on mail app.

Step 1.

• Go the browser and open Outlook.com and log-in on the email.
• Click on gear box go to option.
• Locate for the Formatting, font and signature and click on it.

Once you create the signature go to mail app to turn on the signature option. Follow the below steps:

Step 2.

• 
  Open the mail app click on
  gear box.
  
• 
  Now click on option and turn on the
  signature option.
  

Hope this helps. If you need further assistance with Windows, let us know and will be glad to help.

 

Custom Signature in Mail??

Hi Eric,

Thank you for posting in Microsoft community.

1. Are you using outlook or other third party app?

If you are using mail app I suggest you to follow the steps below.

• Go to mail app.
• Tap on Switch to Setting icon on bottom left.
• Go to options.
• Turn on Signature; Choose the Signature you like.

Hope this helps. If the issue remains unresolved, please get back to us and we would be happy to help.

Thanks.