Windows 10 Insider 21318 Virtualbox VMs with WHV enabled fail to start with VERR_NEM_VM_CREATE_FAILED

[Hunterkll]

Title says it all, though this issue started around Insider build 20246 in October.

That build also broke VMware workstation which functions similarly (to my knowledge) but was resolved in another build about 3-4 weeks later - for VMware. VBox and VMware both broke at the same time, however, and VMware had no updates in the interim - it was a newer windows build that resolved the error.

I have attached my latest vbox.log attempt from starting a VM on the system (note, this would have worked before the insider build that both VMware and vBox refused to work on). I have attempted on both 6.1.16, 6.1.18, and 6.1.19 test build r142777 - the last version is what my report type is from.

[Hunterkll]

vbox log of test VM starting (Solaris ISO attached to VM)

[klaus]

Duplicate of #20536.