July Windows Server 2019 Update Breaks Cluster Services and VMs

The problem with updates for Windows Server does not break off: Microsoft now confirms problems after the last security update from July. It is said that cluster services and virtual machines are now affected by massive problems.

Previously known in Windows Server 2019

The error should only occur under Windows Server 2019 according to the details that have so far been trapped. However, there is still very little known. In an internal note that Online magazine bleeping computer The company describes serious effects on cluster services and virtual machines. The cause is therefore in the July Patch KB5062557, which was published on July 8th.

Function disturbed

The internal note states that after installation it can happen that the so -called cluster service – a central element for the operation of server clusters – no longer works reliably.

Bitlocker as an additional risk factor

Administrators report, among other things, that affected installations can no longer return to existing clusters or get into quarantine states. Virtual machines also restart in part uncontrollably, while the error code Event ID 7031 appears in the event logs. Systems on which Bitlocker is activated seem particularly susceptible to cluster shared volumes (CSV), which are secured with Windows’s encryption technology. Again, there is an increased number of errors and failures.

No patch

According to the Bleeping Computer’s information, Microsoft provides a preliminary solution on request, but an official update to fix the problem is still pending. Also im Windows Release-Health dashboard at the time of the publication of this article there is no reference to the bug and a possible remedy. According to Bleeping Computer, IT departments that are affected by the error should contact Microsoft’s business support in order to receive individual help.

Renewed update breakdown

For many IT managers, the current situation is likely to be a déjà-vu: At the beginning of July, Microsoft had to deal with problems with the Windows Server Update Services (WSUS) that prevented new updates. In addition, the July updates already had to iron out another construction site from June-at that time, an error in the DHCP service caused dropouts in network operation.