Microsoft resolved a identified problem that triggers cluster service and VM restart points after putting in the Home windows Server 2019 safety replace in July.
The corporate acknowledged a non-public advisory bug that BleepingComputer noticed three weeks in the past and requested the corporate to achieve out to assist mitigate cluster points.
As Redmond defined on the time, after putting in the KB5062557 replace launched on July eighth, Cluster Companies (a system element important to cluster operations) could not perform correctly, however in the event you attempt to rejoin the cluster and set off an error within the system, some nodes can also fail.
“After putting in the Home windows Safety Replace (..) in July, the Cluster Service in Home windows Server 2019 could be repeatedly stopped and restarted, inflicting nodes to rejoin the cluster, quarantine, digital machines could expertise a number of reboots, or frequent occasion ID 7031 errors within the occasion log,” Microsoft mentioned.
“In case your group wants assist managing this problem and implementing mitigation, contact Microsoft Enterprise Assist.”
Microsoft has now fastened this identified problem within the August 2025 KB5063877 Home windows Server 2019 cumulative replace. This consists of different main enhancements and bug fixes.
To put in on an affected system, the administrator should first deploy the KB5005112 Service Stack Replace, after which set up KB5063877 by way of Home windows Replace, Microsoft Replace Catalog, or Home windows Server Replace Companies (WSUS).
On Wednesday, Microsoft resolved a variety of WSUS points that prevented organizations from deploying the August 2025 KB5063878 cumulative replace of Home windows 11 24H2 units.
Final month, we additionally addressed one other WSUS bug that blocked organizations from deploying the newest Home windows updates as a consequence of a problem with Microsoft Replace Sync.
Moreover, the July 2024 cumulative replace fastened a problem triggered by the June 2025 safety replace, inflicting DHCP providers to freeze on some Home windows server methods.
