# Microsoft confirms Windows activation failures after November updates

Source: [BleepingComputer](https://www.bleepingcomputer.com/news/microsoft/microsoft-confirms-windows-activation-failures-after-november-updates/) · 2026-11-13 · Security
Page: https://themorning.dev/story/microsoft-confirms-windows-activation-failures-after-november-updates-8762a201a24f4db2
Kind: outage · Impact: medium

## In brief

- Microsoft has confirmed that this month's Patch Tuesday security updates cause Windows activation and licensing failures.
- The failures produce 0x80041008 error codes.

## Why it matters

Machines that install the November updates may fail to activate Windows, which can affect licensing and the systems that depend on it.

## Timeline

- 2026-11-13: Microsoft confirms that November Patch Tuesday updates cause Windows activation failures

## Coverage

- [Microsoft confirms Windows activation failures after November updates](https://www.bleepingcomputer.com/news/microsoft/microsoft-confirms-windows-activation-failures-after-november-updates/) — BleepingComputer, 2026-11-13

Tags: windows, microsoft, patch-tuesday, activation, licensing, outage

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Dev – https://themorning.dev