Alternatively, add “ulm.disableMitigations='TRUE'” to the VMX file.Īfter disabling side-channel mitigations, you may see a warning message from VMware.Open the VM settings and select the “ disable side channel mitigations” option.Enable file extensions for Windows 11 in the virtual machine folder.Shut down the Windows 11 virtual machine and close VMware Player.If you are using VMware Player to run a virtual machine, you can disable side-channel mitigations by following these steps: How to disable side-channel mitigations in VMware Player As a result, disabling side-channel mitigations can improve virtual machine performance.

This is because virtual machines rely on hardware virtualization, which can be affected by the changes made by side-channel mitigations. However, side-channel mitigations can also impact virtual machine performance. Side-channel mitigations are particularly important in x86 CPU architecture, which is vulnerable to several side-channel attacks. These mitigations are software or firmware changes that limit the amount of information that can be leaked through side channels. To prevent side-channel attacks, side-channel mitigations have been introduced.

Vmware workstation player tpm 2.0