Windows 10: Win Defender KB4052623 (v4.18.1905.4) repeated install fail 0x80070643

Can someone please tell me more about this situation? This Windows Defender update is repeatedly failing to install: KB4052623 (Version 4.18.1905.4) installation fail with Error 0x80070643. I have searched various forums for a solution, but have found none so far that pertains to this specific version.

Also, when I try to manually update Windows Defender from within Windows Defender, I get another error message saying: error code -2147023293 protection definition update failed.

Thanks in advance for any help provided. I should add that I have no 3rd party AV installed.

Here are the respective screenshots of the error messages:




:)

 

Windows Defender KB4052623 impossible to install, error 0x80070643


Windows Defender update KB4052623 Error 0x80070643 Solved - Windows 10 Forums
- someone who resolved this although non-trivial.

KB4052623 is repeated at intervals, so you could just ignore it I suppose. Hiding it might not be a great idea.

Longer thread on this error number, albeit historical...
Windows defender update fails. - Windows 10 Forums

Might just need to be patient.. or not..

 

Update for Windows Defender Antivirus antimalware platform - KB4052623 (Version 4.18.1807.18075) - Error 0x80070643

I have tried so many solutions for this. None of those work. Windows defender updates has been issue since I've installed this.

Windows 10 Pro

Version 1803

Installed on 16.5.2018

OS Build 17134.254

List of post what i've tried:

Windows Defender update KB4052623 has been failing to install with error 0x80070643 for months : techsupport (all comments)

Windows 10 perpetually fails to install KB4052623 every 10 mins (Solved)

KB4052623 (Version 4.16.17656.18052) - Error 0x80070643 Defender Troubleshooter - gives conflicting reports

Error 0x80070643 - KB4052623 - Can we get better instructions?

KB4052623 (Version 4.18.1806.18062) - Error 0x80070643 win 10 pro 1803 5/2/2018 os build 17134.112

KB4052623 (v. 4.16.17656.18052) Install Fail - 0x80070643: Possible workaround?

Windows Defender update KB4052623 has been failing to install with error 0x80070643 for months

Windows Defender update KB4052623 Error 0x80070643 Solved - Windows 10 Forums

https://www.tenforums.com/antivirus...02742-defender-antimalware-client-update.html

 

Windows Defender update KB4052623 Error 0x80070643


I keep getting this fail error - • Update for Windows Defender antimalware platform - KB4052623 (Version 4.12.17007.17123) - Error 0x80070643 Has anyone else run into this or know a solution?