Manual downloads seem to be the key this time

Dec 21, 2015 06:27 GMT  ·  By

As we reported to you not a long time ago, the latest cumulative update released by Microsoft for Windows 10 is experiencing some issues on a number of PCs, and users aren’t allowed to install it.

Details are very vague right now on what exactly is happening that causes the install of KB3124200 to fail every time on these PCs, but we’re getting messages from our readers pointing to a possible fix that might actually get a Windows 10 computer fully up to date.

First and foremost, let’s see how the install fails.

According to complaints posted during the weekend, the KB3124200 install fails without a clear error message, and the only thing users are seeing is this text: “We are unable to complete the update. Undoing changes.”

After undoing these changes, the computer reboots to the desktop once again, but in the case of Windows 10 Home PCs, it’s getting worse. Because on the Home SKU automatic update installs are turned on by default, the KB3124200 attempts to re-install at the next reboot, so basically, computers running this OS version are pushed into an infinite reboot loop that has no resolution.

How to (attempt to) fix it

Some of our readers have explained that manually downloading and installing the patch could actually help because, this way, some steps that might be causing trouble are skipped. You can find the download links at the end of the article - make sure you get the version working on your PC.

If that doesn’t work either, the only option is to block the update until Microsoft provides a fix or until the next cumulative update that will bring all the patches included in this one too arrives. Do not expect a new CU to be released anytime soon, though, so the chances are that it’ll land sometime in early January.

Here are the download links for cumulative update KB3124200:

KB3124200 x86 KB3124200 x64

Thanks for the tip, Jeremy!