virtualbox.org

built xp machine on my e drive (larger). Had it working previously. Upgraded to 20. Error message below:

Failed to open a session for the virtual machine xpvbox.

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

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

This link: I have a 64bit host, but can't install 64bit guests is also pertinent when using multi-processor guests.

Note that adding processors to a guest will make it slower for data crunching. If your XP is 32-bit and you cannot get VT-X/AMD-V enabled, you can run the XP guest if you use only one processor in it. And it may run faster, depending on what you do with it, than a 2-or-more-processor XP guest.

Oh, by the way, try not to be too laconic in your forum postings. "Upgraded to 20" means what? I assume you mean Virtualbox 5.0.20, since it just came out, but in a few months that would not be a tenable assumption.