Windows 10: Windows 10 update error 0x80070643

I own a Lenovo laptop with specs: i3 10th gen, 4GB RAM, 1TB HDD, Windows 10 HomeEverything was working fine. But, recently an issue with windows update appeared - when I try to update, the update fails & shows the error code 0x80070643I have updated my windows several times earlier without any issuesI tried the Update Troubleshooter but no useI tried to update the BIOS using Lenovo Vantage app that comes pre-installed, but it shows that my system is up to dateI checked with Device manager, it shows an yellow triangle with exclamation mark inside on the Lenovo.Std subtree under Firmware men

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error 0x80070643 (update)

Hey

Try to apply the update manually As suggested by Microsoft. I just wrote a
step by step guide.

However be sure that the update itself is downloaded and that the installation part is failing, and not the downloading part.

Hope it helps you

 

Windows Update 0x80070643 error + OSE.exe missing

Suggest reading these replies:

• 2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) - Error 0x80070643 (GBorn Replied on January
  17, 2019)
• Windows 10 update (Shawn Brink Replied on January 17, 2019)
  
• FIX for: KB4023057 Fails - Error 0x80070643 (Windows 10 v1803) - Windows 10 Forums
  

 

• Update for Windows 10 for x64-based Systems (KB3081704) - Error 0x80070643

Hi Richard,

Thank you for your interest in Windows 10.

I can understand how frustrating it can be when things don’t work as expected. I'd be glad to assist you with this issue.

Please provide us certain information to narrow down the issue:

• What is the make and model of your computer?
• Which security program is installed on your computer?

I would also suggest you to follow the steps from the article below and check if it helps.

.NET Framework update installation error: "0x80070643" or "0x643"

Fix Windows Update errors

Note: The troubleshooting steps in the above links are meant for windows 8, however, you can use the same for windows 10 as well.

For reference: Installation error 0x80070643 or 0x800706d9

Windows Essentials

Hope this helps. Post back with result so that we can assist you further.