Windows Report on MSN
Windows Server 2016 August update can trigger CompatTelRunner crashes
Microsoft confirms the August 2026 update can trigger CompatTelRunner.exe crashes and 0xc0000409 errors on Windows Server 2016.
Microsoft says the August 2026 security update may trigger 0xc0000409 errors on Windows Server 2016 systems where the Compatibility Appraiser diagnostic service is enabled.
German]The Microsoft security updates released on September 8, 2026, cause RDP connections to stop working after the patches ...
Microsoft makes Azure Arc-enabled Extended Security Updates generally available for Windows Server 2016 legacy workloads. Azure Arc ESUs provide critical security updates after Windows Server 2016 ...
Microsoft has fixed a known issue causing authentication problems on Windows Server domain controllers after installing the April 2025 security updates. Platforms affected by these problems include ...
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