Microsoft blames Samsung for making Windows 11 25H2, 24H2 C drive inaccessible

Microsoft has put the blame solely on Samsung for the recent bug that made Windows 11 C drives inaccessible after KB5077181 or KB5079473 updates.

As is often the case, the latest Windows 11 Patch Tuesday update is said to be causing issues for several users as they report a wide variety of bugs. Although Microsoft does deserve blame on many occasions, credit where credit's due, the company has been fast to act recently as it patched a major critical network flaw with a hotpatch update KB5084597.

Besides that, Microsoft has also made the necessary changes to fix a major bug wherein user access to C drive got denied. When the Redmond company first reported the issue, it was also confirmed that the bug was likely isolated to Samsung devices only and that it was a result of a compatibility conflict or something of that sort.

As such, Microsoft has confirmed that the affected application was removed from the Microsoft Store to prevent further downloads. The company has added that it was Samsung's fault and the recent Windows 11 updates were not to blame for this major mishap.

It writes: "Microsoft and Samsung investigated these reports and concluded that the symptoms were caused by an issue in the Samsung Galaxy Connect app. While the reports coincided with recent March Patch Tuesday timing, investigation confirmed the issue is not caused by current or previous Windows monthly updates. The issue has been observed on Samsung Galaxy Book 4 and Samsung Desktop models running Windows 11, versions 24H2 and 25H2, including NP750XGJ, NP750XGL, NP754XGJ, NP754XFG, NP754XGK, DM500SGA, DM500TDA, DM500TGA, and DM501SGA.

The affected Samsung Galaxy Connect application was temporarily removed from the Microsoft Store to prevent further installations. Samsung has republished a stable previous version of the application to stop recurrence on additional devices."

Microsoft adds that it is still collaborating with Samsung on the issue and further details will be provided later as the investigation progresses.

Following the issue, a user on Reddit Theangelo2 did some further digging and uncovered that the problem could have been happening due to a broken discretionary access control list (DACL) implementation on Windows images on these Galaxy devices. Hence it looks like Microsoft's blaming of Samsung software is righteous.

Source

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Posted Sunday 15 March 2026 at 5:56 pm AEST (my time).

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