August updates trigger 0xc0000409 errors on Windows Server 2016
**Windows Server 2016 Users Hit with Critical Errors After Latest Security Patch** Microsoft has confirmed that its August 2026 security update has a nasty side effect: it can trigger critical errors on Windows Server 2016 systems where a certain diagnostic service is enabled. The error, known as the “0xc0000409” code, indicates a problem with the … Read more