4 ms·I wonder if one could update the microcode using a ring 0 virtualization platform and Windows as a guest.by pvdebbe 9y agoI wonder if one could update the microcode using a ring 0 virtualization platform and Windows as a guest.my123 9y agoNope, can only be done in the host and not VMs for security reasons.caf 9y ago..and microcode updates aren't persistent, they have to be applied every boot anyway.