Windows 10: 1903 installs on its own I reboot its not installed?? Error 0x80070643

I been running 1809 for a while and I like the MS gives us the option now to install 1903 when we want to. So its been sitting at this screen for a couple months then last night surfing the web I get a popup out of no where to the affect of updates have been installed. I'm like what?? Why would that install?

I'm glad it didn't update because i'm totally happy with 1809 and my system runs perfect no issues - does anyone know the issue with this error code?

I will Google it but I wanted to ask here.

Thanks



:)

 

Unable install update in windows 10 Error 0x80070643

Hi David,

Thank you for your interest in Windows 10.

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

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


https://support.microsoft.com/kb/976982

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

Hope the information helps. Feel free to reply to us for further assistance and we’ll be more than happy to help.

 

Error Installing WindowsUpdate KB4048955 for W10 V.1709 amd64 based systems - 0x80070643

Hi Mitchel,

You may get the error code 0x80070643 if the MSI software update registration has become corrupted, or if the .NET Framework installation on the computer has become corrupted. To help you
on this, we suggest that you run the Windows Update Troubleshooter first then check if it helps to resolve the issue.

If the issue still persists, kindly follow the steps provided on this
link. Note that the troubleshooting steps listed in the article should be performed in the order they are listed.

Feel free to post back for an update and let us know if you need more help.

 

Win 10 update failed to install error 0x80070643

Hi,

The error code 0x80070643 is commonly caused by .Net Framework installed on the computer. We suggest addressing the 0x80070002 error code first because this issue occurs when some files in the Windows Update are missing. We can solve this error code by following
the troubleshooting steps suggested on this article.

Note: The troubleshooting steps for Windows 8.1 also applies to Windows 10.

Update us with the outcome so we can provide further assistance.