Microsoft confirms Windows activation failures after November updates

Microsoft has actually validated that this month’s Patch Tuesday security updates are triggering Windows activation and licensing failures with 0x80041008 mistake codes.

According to a Wednesday service alert seen by BleepingComputer, this recognized problem impacts companies that automate Windows activation and licensing procedures or utilize the Software Licensing Management Tool ( SLMGR)command-line tool.

“Affected devices might encounter error 0x80041008, Invalid parameter (SWbemObjectEx), when running commands to activate Windows, configure Key Management Service (KMS), or manage product keys,” Microsoft stated.

“Devices that are being configured to use KMS activation might encounter errors when attempting to initiate their activation. KMS-activated devices typically remain activated for up to 180 days following successful activation.”

The activation failures take place after carrying out the’slmgr.vbs/ skms-domain’and’ slmgr.vbs/ ipk’commands on customer(Windows 10 21H2/22H2 and Windows 11 23H2)and server(Windows Server 2019/2022/2025)gadgets.

Microsoft included that clients with the KMS customer essential set up in their image and who do not utilize SLMGR for licensing management are untouched.[19659008<]the business kept in mind.

While a repair will be offered over the coming days, Microsoft encouraged impacted companies that require instant mitigation to connect to Microsoft Support for service

In January, Microsoft resolved another recognized problem that was triggering Windows license migration failures throughout upgrades since impacted gadgets could not sign up with the Windows Activation server for digital licenses.

Today, it likewise verified that the November 2026 Windows 11 security updates stop working to set up on systems with the October 2026 sneak peek upgrade which Windows updates launched because the October Patch Tuesday are setting off SQL Server efficiency and stability concerns.