Windows 10 update KB3194798 fails to install, shows wrong disk storage size

Microsoft released the new cumulative update KB3194798 for Windows 10 version 1607 as a part of this month’s Patch Tuesday. Since this is just a regular cumulative update, it didn’t bring any new features, but only a few system improvements and bug fixes.

But, despite the fact the update didn’t changed anything visually, but just some flaws ‘behind the curtain’, it still caused headache to users who installed it, or tried to. So, we’re going to explore the dark side of cumulative update KB3194798, and let you know about every reported problem, we’ve managed to find so far.

Windows 10 version 1607 cumulative update KB3194798 reported issues

If you’ve been following our roundup articles about reported problems caused by various Windows 10 updates and Preview builds, you probably know that we usually start with reports about failed installations. That’s because this is the main problem for every new Windows 10 update, and we don’t remember when was the last time a certain update installed normally for everyone.

Of course, the installation problem is the main issues for users trying to install cumulative update KB3194789, as well. There are numerous threads on Microsoft’s Community Forums, where people are still (three days after the Patch Tuesday) reporting the same issue. Cumulative update KB3194798 just fails to install on many computers.

Here’s what some users said about this problem on the forums:

• “I’ve tried to process this update a few times through Windows Update, but it fails each time, uninstalls, and puts things back where they were.  Any thoughts?  Wait for it to resolve itself? “
• “What happens now – update still not installing on my laptop, has been in constant reboot since beginning of October. Now my laptop is trying to install cumulative KB 3194798 and THIS IS NOT uploading. My laptop is also trying to upload PowerPoint KB2596764 and I don’t have PP and computer stopping update. Come on Microsoft – DO SOMETHING ABOUT THIS – OR allow us to take our computers for repair and you WILL PAY THE BILL”

Users’ anger is completely understandable, because only one failed installation is quite annoying, let alone multiple ones. And while users can’t do anything to prevent further installation fails of future updates, they can fix the problem at the moment, by solving KB3194798 installation problem.

There are various ways to fix installation problems of Windows 10 updates. You can run the WUReset script, delete the SoftwareDistribution folder, and more. But, perhaps the best solution in this case is to download and install the update manually. So, if you’re encountering installation problems when trying to install KB3194798 via Windows Update, you can find direct download links here. So, just download the update, install it, and the problem should be solved.

There’s also one more flaw, that’s more some kind of a bug, than an actual problem. Namely, the Clean System Files section of  the Disk Cleanup Utility reports an enormous disk size of 3.99TB, no matter how much storage users actually have on their computers.

“Disk Cleanup listed the size of the Windows Update files that could be deleted as 3.99 TB, yes terabytes!  What was shocking was the fact that I only have a 250 GB SSD drive on my laptop, one PC has a 256 GB SSD main drive and a 2 TB secondary, and the third has a 500 GB SSD with a 2 TB secondary drive,” said one user of the Community forums.

However, it looks like this bug doesn’t affect the Disk Cleanup’s performance, as the majority of users say that it still works regularly.

Besides regular installation issues, and an odd bug with the disk size, we haven’t seen any more complaints from users. That means the system is quite stable after installing the cumulative update, which wasn’t the case with some of the previous cumulative updates.

If you’ve noticed some more issues after installing cumulative update KB3194798 for Windows 10 version 1607, feel free to let us know in the comments.

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