A fatal error may occur when attempting to install KB3020114 on Windows 10. Microsoft is aware of the issue and here is a workaround.
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Fix – Windows 10 KB5034441 cannot be installed. Download error 0x80070643 (Script)
If you tried to install the KB3020114 update in your Windows 10 Technical Preview Build 9879 and it failed with error 80070005, you are not alone. Many users are reporting that they are unable to install this update that Microsoft released on December 2nd.
The update Microsoft is releasing for Build 9879 is designed to fix a major crash and restart issue with Explorer.exe. The company is aware of the issue and is working on a permanent solution. If the crashes annoy you and you don't want to wait, there is a workaround that will allow you to successfully install the KB3020114 update.
According to a post on the Microsoft Answers forum, user MVP Jeffrey Roach resolved the issue by uninstalling all previous updates to build 9879 and reinstalling them all. Follow the steps below to resolve this issue.
