What error are you getting in the Windows device manager? If you're
getting error 43, you have to mask your hypervisor either by
disabling the hypervclock (check part
4 on aw's guide) or by spoofing your hv_vendor_id (as
The former can have a pretty noticeable impact on your performance,
though, so you'll probably want to go with the second option if
you're ok with using a nightly build of qemu.