November update blocked in Windows activation

Microsoft has confirmed that this month's Patch Tuesday updates created a Windows activation error. The error appears with the code 0x80041008 and hits organizations that automate licensing processes. However, activated devices are not affected by this situation.

In which commands does the Windows activation error occur?

According to Wednesday's service alert, the issue is seen in organizations using the Software License Management Tool (SLMGR). Organizations that automate Windows activation also encounter the same problem. The issue occurs on devices that run commands to activate Windows, configure Key Management Service (KMS), or manage product keys. The message "Invalid parameter (SWbemObjectEx)" appears on the screen.

For example, the error occurs after the commands 'slmgr.vbs /skms-domain ' and 'slmgr.vbs /ipk '. Devices configured for KMS activation may also receive errors when starting the process. KMS-activated devices normally remain active for up to 180 days after successful activation.

Affected and unaffected versions

Windows 10 21H2 and 22H2

Windows 11 23H2

Windows Server 2019, 2022 and 2025

The above versions are affected by the issue. However, customers who apparently have a KMS client key installed and do not use SLMGR for license management are not affected. According to Microsoft, devices that are already activated remain active. In addition, no problems are expected on devices that have the appropriate KMS client key and configuration ready. These devices are not required to run the affected commands.

Fix for Windows activation error

Microsoft announced that a fix will be released in the coming days. Organizations that want an immediate solution should contact Microsoft Support for businesses.