December 3, 2023

Microsoft has pulled one more buggy Windows 10 servicing stack update (SSU), KB4601390, because it blocked customers from installing this month’s security and Cumulative Updates.

The company resolved the update installation problems by releasing a new servicing stack update (SSU), KB5001079.

Windows 10 SSUs provide servicing stack fixes, the component used by Windows 10 to download and install updates correctly.The removals were caused by Windows 10 security updates getting stuck during the installation process at 24%.

The issue was first observed by users who tried installing the February 9 security updates on Windows Server 2016 and Windows 10, version 1607. Afternoon installing the SSU KB4601390, installation of the Cumulative Update from Windows Update might not progress past 24%.

Since Microsoft removed the buggy KB4601390 SSU, it will no longer be offered through the Microsoft Update Catalog or Windows 10 devices searching for updates through Windows Update.

Although SSUs cannot be uninstalled from computers after being deployed, Microsoft says that customers who have already installed KB4601390 can still reset the update components to mitigate the issue and have the new SSU deployed.

“To mitigate this issue on devices that have already installed KB4601390 and are not making progress installing KB4601331, restart your device and then follow only steps 1, 2 and 4a from Reset Windows Update components manually,” the company explains.

“Then restart your device again. KB5001079 should now install from Windows Update when you select ‘check for updates’ or you can wait for it to install automatically.”

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