Problem

Not in a hypervisor partition (HVP=0)
(VERR_NEM_NOT_AVAILABLE).

VT-x is disabled in the BIOS for all CPU modes
(VERR_VMX_MSR_ALL_VMX_DISABLED).

Solution

Quoted from HackSlash on StackExchange Super User:

The error message is very clear in this case. Your CPU virtualization options are turned off in the BIOS. You need to reboot in to the BIOS and Enable VT-x. According to the manual: http://h10032.www1.hp.com/ctg/Manual/c06002345

“Turn on or restart the computer, quickly press esc, and then press f10.” Under the System Configuration Tab. Check if there is Virtualization Technology listed. Enable it.