GoKawiilMicrosoft confirms Windows activation bug tied to November Patch Tuesday update
Microsoft has acknowledged that its November Patch Tuesday security updates are triggering Windows activation and licensing errors coded 0x80041008. The issue hits organizations using automated activation tools or the SLMGR command-line utility on Windows 10, Windows 11, and several Windows Server versions when running specific commands to activate Windows or configure KMS.
GoKawiil's interpretation of the reporting above, not reported fact.
The bug mainly threatens enterprise IT operations that rely on automated licensing workflows, since KMS-activated machines could fail to renew activation within their 180-day window if left unaddressed. Microsoft says a permanent fix is coming within days, but in the meantime affected organizations must contact Microsoft Support directly, adding operational friction for IT teams managing large device fleets.
- November Patch Tuesday updates cause 0x80041008 errors during Windows activation and licensing tasks.
- Affects devices using SLMGR commands or automated activation, including KMS configuration, across Windows 10/11 and Server 2019-2025.
- Already-activated devices are unaffected; Microsoft plans a fix soon and offers direct support for urgent cases.
Source: bleepingcomputer.com, 2026-11-13
Published there as: “Microsoft confirms Windows activation failures after November updates”
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