#Virtualbox 64 bit amd 32 bit
#Virtualbox 64 bit amd windows 10
#Virtualbox 64 bit amd windows 7

My AMD processor is supposed provide AMD-V support, but I can find no option for enabling AMD-V in BIOS. When I tried to run a 64-bit OS that requires hardware virtualization using VirtualBox, it showed me an error message that 'AMD-V is not enabled'.

… bumping.I am running on a dual core AMD E450 CPU. In the mean time, I am going to go ahead and close this old thread.

#Virtualbox 64 bit amd windows 10

Does the Windows 10 VM work on other hosts? You assert that it won't get past the Windows logo without acceleration why do you think that it will work with acceleration? In other words, I am not sure you are chasing the same problem.Īs this thread is old and solved, and as I am a moderator I am going to suggest you open a new thread on the topic that you will own.īe sure to tell us about your machine (including make/model), its graphics subsystem, and which kernel you are running. I believe this is all moot with recent versions of VirtualBox. Thinking back, the problem was that a working 32 VM stopped working because the defaults inside VirtualBox changed, and the GUI was not updated to support it. Fortunately, this computer (HP Envy) does have VT-x I have not thought about this issue in a long time. When I started this thread, three years ago, I had a different computer. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot.

#Virtualbox 64 bit amd 32 bit

The latest version of VirtualBox would again run my 32 bit XP VM without barfing due to lack of Vt-x. VT-x/AMD-V hardware acceleration has been enabled, but is not operational.

Hand editing the XML file that defined my XP VM and adding a tag disabling long mode to the CPU section of the file did the trick. There did not seem to be a GUI hook in the Oracle VM management tool to disable LongMode. It would seem that, missing that tag, the latest version of VirtualBox defaults to enabling LongMode which, in turn, requires Vt-x. I had run into the very same problem and after spending like 2hrs I finally solved this.

#Virtualbox 64 bit amd windows 7

The Windows 7 VM, created by the latest incarnation of VirtualBox, had the tag and set it to false. It depends on your BIOS, but it will look something like this (probably): In VirtualBox click -> Settings -> System -> Acceleration and enable the checkboxes as shown below. In the older versions of the XML file that defined the XP Virtual Machine, there had been no LongMode tag. I was wrong, it is (was, actually, I finished my migration to Windows 7) a 32 bit machine.Īpparently, newer versions of VirtualBox have a VM configuration option called LongMode (I am not certain as to the capitalization, I am not in front of my machine). 64-bit guest To run a 64-bit guest OS on a 32-bit or 64-bit host, the CPU must support virtualization (AMD-V or Intel VT-x) and nested paging (AMD RVI or Intel EPT), and must have these features enabled in the BIOS and the VirtualBox machine configuration. I had thought that the XP was 64 bit and would not start leading me to believe II had lost Vt-x capability. I could not build a Windows 7 x86_64 machine, only a 32 bit. My confusion was that my XP VM would not start complaining about a lack of Vt-x support. It turns out that my machine does not support Vt-x It never has.