Upgrade a Core VM Complete the Core VM upgrade before you upgrade the MSM VM. Child TopicsTake a snapshot of the Core VMBefore upgrading, create a snapshot of the Core VM. If you encounter problems during the upgrade process, you can revert the VM using the snapshot. Start a Core VM upgradeExecute VxBlock-Central_core_upgrade-<buildnumber>.vce to upgrade. Verify a Core VM upgradeAfter upgrading, verify the correct version of the Core VM is installed. Restart the VMware vSphere Web ClientRestart the VMware vSphere web client after you upgrade the Core VM. Remove a VM snapshot As a best practice, remove VM snapshots after you successfully upgrade the VMs.