Latest Windows 10 October Patch Tuesday Cumulative Update KB4517389 Causes BSOD Failures On Laptops?

The latest cumulative update sent to Windows 10 version 1903 as part of the October Patch Tuesday, has been causing several weird behavioral issues within multiple components. Quite recently, we reported about the update breaking Start Menu and crashing the Microsoft Classic Edge browser. While several users have noticed the update fails to install correctly, few others have claimed the Windows 10 KB4517389 Cumulative Update, also known as the October 2019 Update is also causing BSOD (Blue Screen of Death) on Windows 10 1903 installations.

According to the affected users who reported on Microsoft Answers and other support forums Windows 10, KB4517389 Update comes with plenty of issues. In addition to the aforementioned issues, Microsoft engineers need to fix two more bugs. According to several posts on Microsoft official Community Support Pages as well as social media platforms, Windows 10 KB4517389 Update is causing random BSOD, and they are particularly visible on laptops running the latest cumulative update. It is important to note that overwhelming cases of BSOD are being reported to take place on laptops, and not a single case has been reported on desktop PCs running Windows 10 OS.

Windows 10 October Patch Tuesday Cumulative Update KB4517389 Causing BSOD Issue On Laptops:

Attempting to explain the weird behavior, a user wrote on Microsoft Community site, “On my laptop machine (but not on my desktop) I started getting BSOD failures in cldflt.sys after installing KB4517389.” Apparently, the user ran some tests and confirmed that it was indeed the KB4517389 Update that caused the issue as, “uninstalling the update brought everything back to normal,” he concluded. Multiple community members have reconfirmed the occurrence of the BSOD issue after installing the update.

Another person noted on Affinity forum that after installing the update on his laptop running Windows 10 version 1903, he is experiencing BSOD. “Just FYI, I rebooted my Windows 10 laptop this morning to finish installing Windows Update KB4517389, and after that, I experienced several Windows failures, BSOD when using the menus in the Affinity applications.” The user clearly mentions that the BSOD issue becomes prominent when using Affinity applications, but this could be a mere coincidence as well.

How To Address BSOD Issue In Windows 10 1903 After Installing KB4517389 Cumulative Update?

The Windows 10 October Patch Tuesday Cumulative Update KB4517389 has become quite a pain point for several Windows 10 OS users, who are particularly on the latest, stable version of the operating system, which is 1903. The latest Windows 10 version 1909 may be just around the corner for everyday users, but the Windows 10 version 1903 (May 2019 Update) is still the latest stable release.

Microsoft released the Windows 10 KB4517389 Cumulative Update, also known as the October 2019 Patch Tuesday Update, on October 8. The latest update might just be the last large update before Microsoft releases the Windows 10 1909 Update to common users. It is  currently doing the rounds of Release Preview Ring Insiders.

Windows 10 May 2019 Update has been one of the most troubled releases. The latest monthly update has so far caused issues in wireless networking, broken down Windows Search, Cortana, and caused weird behavior in Start Menu, and even resulted in high CPU usage. However, after cataloging the issues that the KB4517389 Cumulative Update has been causing, it appears this update too, is notorious for breaking many applications, which were functioning well earlier.

Recurring BSOD crashes is certainly a very serious matter. Users who are encountering BSOD frequently should consider removing the Windows 10 KB4517389 Cumulative Update immediately. As an additional precaution, users should also hide the update from being reoffered by Windows Update.

To uninstall this Update, visit Control Panel > Programs > Programs and Features > Installed updates, select “Update for Microsoft Windows (KB4517389) and click “Uninstall” and follow the on-screen instructions.

Interestingly, Microsoft offers an optional tool to hide updates. Interested users should consider downloading the tool, available on the official Microsoft website, and blocking the KB4517389 Update.


Alap Naik Desai

A B.Tech Plastics (UDCT) and a Windows enthusiast. Optimizing the OS, exploring software, searching and deploying solutions to strange and weird issues is Alap's main interest.
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