After update: machine doesn't start - BIOS

[Bas141]

Hi,

I updated VX on Win7 to release 4.3.4 (latest release). When I tried to start a virtual machine, I got the error message (in German language, as I use the German version): "For the Virtual Machine xxxx no new session could be opened. VT-x is disabled in the BIOS (VERR_VMX_MSR_VMXON_DISABLED)."

Details:

Fehlercode:
E_FAIL (0x80004005)
Komponente:
Console
Interface:
IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}

HELP!!!!! I need "my" VM!


P. S. I found a hint in the internet, that there might be an error with VM_NAME.xml. But this file existed, and if I copied the *-prev file content to it, the problem was still there.

[Perryg]

Do you have hardware virtualization and is it enabled in the bios?
What is the guest exactly? and what is the bit count?
Also post the guests log file ( as an attachment )

[Marc W]

I am having the same problem. I must say, and maybe you will get angry, but I am not plowing through my computers BIOS on a daily basis. I cannot find that virtualization technique switch anywhere, and I am getting a little annoyed with the answers I have seen on line so far since I do not think it is 'just simple' to change that setting, I have not the faintest idea where it is.

[mpack]

I am getting a little annoyed with the answers I have seen on line so far since I do not think it is 'just simple' to change that setting

I don't recall anyone hereabouts saying that it's simple to find the appropriate setting in your host BIOS, and I notice you didn't support this with a discussion link. The usual answer given hereabouts is that the host PC BIOS is something you need to ask the host PC manufacturer about.

Not all PC BIOSes have the option, because not all CPUs do. Basically, if it's a mid-high range 64-bit capable PC made in the last two or three years then the option is likely to exist. If the BIOS option exists then it's often buried in a security menu or similar. Every BIOS is different, so if you want a definitive and straightforward answer then go to the people who should know: your PC mfr.

[socratis]

I am getting a little annoyed with the answers I have seen on line

Imagine us, who don't even know what your BIOS looks like! Post at least a make/version or a link to a user manual for your BIOS. But, generally speaking, it should say something like VT-x, AMD-V, hardware virtualization, or similar wording.

[mpack]

Post at least a make/version or a link to a user manual for your BIOS.

Uh... no, don't do that. These forums are for supporting VirtualBox, we don't do PC tech support here. That's the responsibility of whomever made or sold the PC.