Microsoft has solved a known problem that triggers cluster service and VM restart issues after installing the July Windows Server 2019 security update.
The company accepted the bug in a private advisor seen by BlappingCopper three weeks ago and asked businesses to reach for support to reduce cluster issues.
As Redmund had explained at that time, the cluster service (a system component required for cluster operation) may fail to function correctly after installing it. KB5062557 update It was released on 8 July, while some nodes may also fail when the cluster is enabled on the cluster shared volume (CSV) drive while trying to re -connect its cluster and trigger errors on the system with Bitaloker Windows Safety.
“After installing the July Windows Security Update (..), the cluster service can stop and restart on the Windows Server 2019, which may fail to re -include the nodes clusters or enter the quarantine states, virtual machines to experience many restarts, and the event ID 7031 errors within the event logs,” Microsoft said the event ID 7031 erosion within
“If you need aid to manage this issue on your outfit and apply a mitigation, please contact with the support of Microsoft’s business.”
Microsoft is Now decided this known issue In August 2025 kb5063877 cumulative update For Windows Server 2019, including other significant improvements and bug fixes.
To install it on the affected system, admins must first deploy the KB5005112 servicing stack update and then the KB5063877 will have to be installed through Windows update, Microsoft update listOr Windows Server Update Services (WSU).
On Wednesday, Microsoft resolved a comprehensive WSUs issue, which prevented organizations from deploying cumulative updates on Windows 11 24H2 devices August 2025 kb5063878.
Last month, it also addressed another WSUS bug, which blocked organizations by deploying the latest Windows updates due to Microsoft update sink problems.
Additionally, the July 2024 cumulative update set an issue triggered by the security update of June 2025, which made the DHCP service freeze on some Windows Server System.