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Microsoft blames unexpected Windows driver updates on caching issue

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Why This Matters

This incident highlights the importance of robust update management and the potential risks of caching issues in enterprise device environments. For consumers and organizations, it underscores the need for vigilant update policies to prevent unexpected changes that could disrupt device functionality. Microsoft’s swift response demonstrates the ongoing efforts to improve update reliability and security in Windows systems.

Key Takeaways

On Wednesday, Microsoft fixed an issue that caused some Windows devices to install driver updates without notice despite policies configured to prevent auto-updates.

In an admin center incident report (MO1332784), Microsoft blamed the issue on a misconfiguration in the Windows Update caching service that temporarily dropped device enrollment information, causing some Windows devices to be treated as non-enrolled and preventing driver-approval controls from being applied correctly.

The Intune Support Team also acknowledged the issue on Twitter and Reddit, saying the company was actively working to mitigate it.

"We've received a report of an issue where users' Windows devices that have configured policies to prevent auto updates are installing drivers," Microsoft said when it acknowledged the issue on Tuesday afternoon, June 2.

"As we work to remediate the impact, we've determined that the drivers being installed are Microsoft approved/signed and that they don't pose a security threat."

Microsoft updated the affected service cache and the enrollment status for affected devices to mitigate the impact and, in a Wednesday update, confirmed that the issue had been resolved.

"We've validated that this issue is resolved following impact remediation confirmation from a subset of previously affected users," it added.

"We're continuing to review how this caching service temporarily dropped Windows device enrollment information to better inform how to detect, prevent, and respond to similar service issues in the future."

While the company has yet to share how many regions or customers were affected by this issue, Windows admins have reported having to deal with tens of thousands of devices unexpectedly getting BIOS and driver updates, in many cases causing audio or video devices to stop functioning.

In April, Microsoft resolved a known issue causing systems running Windows Server 2019 and 2022 to upgrade to Windows Server 2025 "unexpectedly."

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