I am running VMWare Workstation 16 Player.

When I run a VM I get a popup warning "You are running the machine with side channel mitigations enabled..."

If I select OK the VM loads very slowly compared to what it used to.

I added the following to the VMs .vmx file:

ulm.disableMitigations = "TRUE"

Now when I try to select or run the VM I get the following error

"Error while opening the virtual machine: VMX file is corrupt."

Since the recommended workaround does not work what should I do about the "side channel mitigations" problem?

Update

After I posted this I realized I must have accidentally corrupted the .vmx file. I didn't know what the problem was so I just recreated the VM. This time when I added thie following again it eliminated the popup message.

ulm.disableMitigations = "TRUE"