VMware has launched a vSphere ESXi replace to handle a recognized challenge inflicting some Home windows Server 2022 digital machines to not boot after putting in this month’s KB5022842 replace.

Microsoft first acknowledged the problem on Thursday when the corporate mentioned it solely impacts VMs with Safe Boot enabled and working on vSphere ESXi 6.7 U2/U3 or vSphere ESXi 7.0.x.

Though Redmond says that solely VMware ESXi VMs are affected, some Home windows admin studies trace at different hypervisor platforms (together with naked metallic) being impacted by related boot issues after deploying this month’s updates.

“The Home windows replace package deal delivers a brand new type of digital signature on the EFI bootloader, which UEFI Safe Boot incorrectly rejects. Because of this, digital machines would possibly fail to find a bootable working system and never boot,” VMware defined at present.

VMware launched ESXi 7.0 Replace 3к, which resolves this recognized challenge and can enable admins to revive affected VMs that have been not booting.

“In case you already face the problem, after patching the host to ESXi 7.0 Replace 3k, simply energy on the affected Home windows Server 2022 VMs,” VMware says.

“After you patch a number to ESXi 7.0 Replace 3k, you’ll be able to migrate a working Home windows Server 2022 VM from a number of model sooner than ESXi 7.0 Replace 3k, set up KB5022842, and the VM boots correctly with none extra steps required.”

Workaround additionally obtainable

VMware additionally supplies a number of short-term workarounds for admins with affected hosts who cannot instantly deploy at present’s replace.

To do this, admins can take one of many following measures:

1. Improve the ESXi Host the place the digital machine in query is working to vSphere ESXi 8.0
2. Disable “Safe Boot” on the VMs.
3. Don’t set up the KB5022842 patch on any Home windows 2022 Server digital machine till the problem is resolved.

The Safe Boot possibility may also be disabled for every VM as a short lived repair utilizing the next process: 

1. Energy off the VM.
2. Proper-click the digital machine and click on Edit Settings.
3. Click on the VM Choices tab.
4. Beneath Boot Possibility, uncheck the “Safe Boot enabled“

Sadly, for those who’ve already put in the KB5022842 Home windows Server 2022 cumulative replace, uninstalling it is not going to resolve the problem. The one answer is to improve to ESXi 7.0 Replace 3k or disable Safe Boot.

Microsoft can also be engaged on addressing a recognized challenge inflicting WSUS servers upgraded to Home windows Server 2022 to fail to push February 2022 Home windows 11 22H2 updates to shoppers.