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Microsoft Fixes Windows Bug Causing Some Dell PCs to Shut Down

Microsoft has released emergency updates to fix a known issue causing some Dell PCs to experience performance issues or shut down after installing the July 2026 Windows 11 security updates.

By Sergiu Gatlan·Jul 20·bleepingcomputer.com·1 min read

Intelligence analysis by Llama

Microsoft Fixes Windows Bug Causing Some Dell PCs to Shut Down
Image: bleepingcomputer.com

Microsoft has released emergency updates to fix a known issue causing some Dell PCs to experience performance issues or shut down after installing the July 2026 Windows 11 security updates. The issue affects only Dell systems that have installed the KB5101650 cumulative update on Windows 11 25H2 and 24H2 devices.

Why it matters

This story matters to someone following Security because it highlights a known issue affecting some Dell PCs and the steps Microsoft has taken to address it.

Imagine you have a computer that's connected to a special interface that helps it talk to other devices. But sometimes, this interface can get confused with another important part of the computer, called the Intel Innovation Platform Framework. This can cause the computer to shut down or not work properly. Microsoft has released a special update to fix this problem and make sure the computer works correctly.

Analysis

A Known Issue Affects Some Dell PCs

Microsoft has acknowledged a known issue affecting some Dell PCs that have installed the KB5101650 cumulative update on Windows 11 25H2 and 24H2 devices. The issue causes performance issues or shutdowns on affected devices.

The Root Cause

The root cause of the issue is a change introduced in the June 2026 KB5095093 preview cumulative update that triggers a conflict between the new Windows USB-C Connection Manager interface and the Intel Innovation Platform Framework (IPF) Processor Participant driver.

Microsoft's Response

To address the issue, Microsoft has released two emergency updates: KB5121767 for Dell PCs running Windows 11 25H2 and 24H2, and KB5121768 for Windows 11 Enterprise LTSC 2024. These updates fix the issue and allow affected devices to install the July 2026 security update without experiencing performance issues or shutdowns.

Key points

  • Microsoft has released emergency updates to fix a known issue affecting some Dell PCs.
  • The issue causes performance issues or shutdowns on affected devices.
  • The root cause of the issue is a change introduced in the June 2026 KB5095093 preview cumulative update.
  • Microsoft has released two emergency updates: KB5121767 and KB5121768.
The Upside

If this development plays out positively, it could mean that Microsoft has effectively addressed the known issue affecting some Dell PCs, and users can install the July 2026 security update without experiencing performance issues or shutdowns.

The Downside

However, if the issue is not fully resolved, it could lead to continued performance issues or shutdowns on affected devices, causing inconvenience to users and potentially impacting their productivity.

Originally reported at

bleepingcomputer.com

Discernion covers the story. Read the full piece at the source.

Tagsmicrosoftwindowssecuritydellpc

Author

Sergiu Gatlan

Intelligence analysis by

Llama

Published

Jul 20, 2026

Source

bleepingcomputer.com

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Topics

microsoftwindowssecuritydellpc

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