If the option is not available via the GUI you need to do it manually.
Remove all snapshots.
Power off the VM cleanly: do not suspend it.
Edit vmx-file when the VM is powered off.
Remove any lines that specify the name of a vmss-file.
Set
virtualHW.version = "12"
Remove any virtual hardware that does not exist in version 12.
Edit vmdk-descriptor-files and set
ddb.virtualHWVersion = "12"
Ulli
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Do you need support with a VMFS recovery problem ? - send a message via skype "sanbarrow"
I do not support Workstation 16 at this time ...