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Shortly after the Windows 10 cumulative update launched last week, it became clear that some users were having trouble with the build. Microsoft confirmed on Tuesday that a fix was incoming, and it’s now officially available.

The fix comes in the form of an installer file. Rather than direct registry edits, it comes as a .msi file called “Update Registry.”

Running the file opens a cmd window which then runs several lines of code before closing. It’s totally safe and doesn’t require fiddling around like the previous workaround.

Xbox Scheduled Task Keys

According to Microsoft, the issue originated from leftover Xbox Scheduled Task regkeys. The keys were blocking the update, which resulted in the failed install.

“We became aware of an issue with the recent Windows 10 cumulative update that impacted a small number of customers in the Windows Insider Program that were running a previous build of the OS,” said a Microsoft spokesperson,“We have created a solution to resolve this issue, which is now live and can be accessed here.”

The issue only affects users on a specific Insider build and comes a total of seven days after the release.

Windows 10 14393.222 Changelog

Some of you will be installing the build for the first time now, so here’s a quick rundown of the fixes:

  • “Improved reliability of the Windows Update Agent, shared drives, virtual private network (VPN), clustering, HTTP downloads, Internet Explorer 11, Hyper-V platform, multimedia playback, and Microsoft Edge.
  • Improved performance of push and local notifications, Hyper-V platform, and some social media websites using Microsoft Edge.
  • Issue where mapping a drive from an elevated command prompt doesn’t work with administrator credentials.
  • Addressed issue causing movies that were ripped using the transport stream (.ts) format to play without sound in Windows Media Player and the Xbox One Media Player app.
  • Issue causing the Movies & TV app on the Xbox to stop working when attempting to play content that was just purchased from the Store.
  • Addressed Issue where ActiveX can’t be installed when using the ActiveX Installer Service (AXIS) in Internet Explorer 11.
  • Issue causing “Print all linked documents” to not work in Internet Explorer 11.
  • Improved reliability of downloading and updating games from the Store.
  • Issue preventing some users from changing the default download location in Windows 10 Mobile.
  • Addressed issue causing unnecessary notifications about fixing Microsoft account in Windows 10 Mobile.

There are further fixes to almost fifty applications and services, so it’s well worth a download. You can find more detail on the TechNet documentation.

You’ll then want to install the new fix.