
- December 2025’s Patch Tuesday updates broke MSMQ on Windows Server and enterprise Windows 10 systems, disrupting apps and IIS sites
- Microsoft is developing a fix but says affected organizations must contact business support for a workaround or rollback
- Reported issues include inactive queues, failed writes, and false “insufficient resources” errors despite adequate capacity
Microsoft is asking businesses experiencing Message Queuing (MSMQ) issues to reach out directly to get assistance with a workaround.