VirtualBox only showing 32-bit options I think I could have done this by starting to enable Hyper-V and then deciding not to. Either that or its a problem with virtualization in the Bios. By default, VirtualBox only allows to install 32 bit OS on it. But sometimes, 64 bit OS is wanted for specific uses such as running platform specific tests. What to do when VirtualBox is only showing 32-bit and no 64-bit versions of operating systems as options while creating a new virtual machine You are not restricted in running 32-bit of. If the host machine is 64-bit and you are using VirtualBox to host and running your virtual machine, don’t be puzzled if your VirtualBox is showing you that it can only support for 32-bit of operating system. This isn’t “normal” and you can fix it to enable VirtualBox to support 64-bit OS. You are not restricted in running 32-bit of Windows. I have created a Windows 10 (64-bit) guest. I installed VirtualBox v6.0.10 in the Windows 10 guest (Windows 10 Pro – v1903 – 64-bit). I am trying to create an Ubuntu (64-bit) guest inside the Windows 10 guest. I only see 32-bit options inside the Windows guest. After several attempts to resolve this, I am still only seeing 32-bit options.
I've tried on 5 different 64-bit machines and made sure that on each of them both VT-x/VT-d are enabled and Hyper-V is not installed. Yet on three of the machines I am only allowed to select 32-bit guests and on the other two I can select 64-bit guests. What I've noticed is that the three machines that only offer 32-bit are running Windows 10 version 1709 and the two that offer 64-bit are running Windows 10 version 1703.
I know that Microsoft is pushing the 1709 updated so more and more machines will be running it over time. Can anyone else repro this issue? Any other workarounds I should try?
Thanks,
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