Fix Windows Update Error 0x80070643 on Windows 10

Fix Windows Update Error 0x80070643 on Windows 10

Today we will fix error Windows Defender Windows Update Error 0x80070643, first make sure you uninstall any 3rd Party Anti viruses or Anti malware programs.

So what causes this windows defender kb2267602 0x80070643 error? There many reasons why you may encounter error 0x800070643. Here are some of the main reasons why it happens

Failed to install latest Windows updates
Damaged or corrupt operating system files.
Corrupt or Damaged .Net Framework.
Installed third-party antivirus/malware software.
Corrupt system registry or Errors in Registry.
Virus/Malware infection.

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1) Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type “sfc /scannow” and press Enter.

DISM /Online /Cleanup-Image /RestoreHealth
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2) Microsoft .NET Framework Repair Tool

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Reset Windows Updates Components

3) Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

net start wuauserv
net start cryptSvc
net start bits
net start msiserver

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Use Windows Defender Command Line Tool to Update the Signatures

Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type:

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -RemoveDefinitions -All

“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -SignatureUpdate

"%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -SignatureUpdate -MMPC

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Fix Microsoft Silverlight
Download Microsoft’ Silverlight Fix it Utility

Once uninstalled download latest version

——————— My Social Links:

#0x80070643 #FixWindowsUpdate #FixError0x80070643 #Windows10

[Britec]

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T H A N K Y O U F O R W A T C H I N G !
P L E A S E L I K E A N D S U B S C R I B E !
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[giancarloaizon]

this was 3 years ago and still more relevant than any of troubleshooting BS I've seen. Thanks man

[CesareVesdani]

I just can't believe that such an advanced operating system like Windows 10 has so many bugs and glitches. Why is Windows 10 so buggy?

[Navx]

Thank you from New Brunswick, Canada as resolved my recurring Windows 10 update issue. New subscriber now...

[izzy_]

My computer didn't want to do the definitions removal for some reason, but I followed the rest of the video and ended up fixing my initial issue anyway. Thanks a lot!

[zenutopiak]

This happened to me today. Good, thorough video. After watching it, and taking notes, before attempting your fixes, I decided to try Windows Update one more time first, and lo and behold, luckily, it was suddenly working again, with no errors! I had read that sometimes this problem "will fix itself eventually", but was skeptical until this happened. Even so, thank you for making helpful videos like this. Nice to know what to do, should this happen again.
UPDATE: This happened to me again, and you're video helped me fix it. Thank you!

[ollychap]

Hope you have a great Christmas and thanks for all your videos this year

[jeffhalebopp]

This is why I am still using windows 7. I am waiting for MS to actually fix bugs instead of adding new features to windows 10 and ignoring reliability. They are on the wrong path. I am a big fan of Britec and glad he is here to help windows 10 users. Thumbs up as always.

[Entutu]

Thank you very much !
The first one worked like a charm !
You have new sub <3

[stephandroid]

Thanks again for a great video, have a safe and wonderful Christmas.

[Cyhyraeths]

I just got an 'unexpected store exception' BSOD on my PC. I notice there was an update 2 days ago. Any Ideas if it's related? I've checked my drives they're all 100% good, so it wasn't that.

[ShadowzGSD]

How safe is it to fully update windows 10 now? with all the recent problems I have not updated for months

[AreeshFlower]

Followed the first three things and it worked! Thanks a bunch!

[dvirmizrahi]

love your voice and it fix my issue with the windows thanks so much<3

[philipowen]

Thanks very much for this very useful info on windows updates. Glad to hear Brian that you are sounding much better, Have a great Xmas and a very happy New Year

[leoniedejong]

The problem I have, is that from updates that are already installed weeks or month ago, I get a message that there is a download error 0x80070643 and they can't be installed.Looks like I'm still protected, but my laptop (10 years old) go's through the update again when I restart. So at the end I suspended my updates for 7 days. No problems but also more vulnerable.

[George-mklp]

Thanks for one more great video and Happy Christmas Briteoc09

[mohammadsab]

Hi Britec
Ive some how managed to hold 1809 by setting on metered connection but 1809 is on my downloading list and it says that u can download it whenever u get out of metered connection. I just want to remove 1809 from download list and receive other updates. Do you have any suggestions?

[ninogen]

Much appreciated. Your video was a great help to solve the problem. It's fixed!

[RobertKeenanComp-U-Right]

Another Windows 10 repair nugget, thanks Brian.
May you have a blessed Christmas & Prosperous New Year!