I can't download VirtualBox 64bit but my processor is 64bit

[joshisci]

Hi, I downloaded virtualbox from the original website, and I noticed I can't choose between 32bit and 64bit hosts when creating my virtual machines. When I download it again, it still only has 32bit available, I dont know how to fix it, because
I didnt use to have this problem before. I had windows 10 home and then I was able to create 64bit hosts, then I upgraded to Pro and now I cant

any help is very appreciated

[Perryg]

1) 64-bit guests need hardware-virtualzation enabled in the hosts bios.
2) when creating the 64-bit guest you must select 64-bit in General -> Basic -> version.
3) If running Windows as host you must make sure hyper-v or xp mode is not enabled on the host. MS does not play well and wants it all.

[mpack]

If it worked before and stopped when you upgraded to Win10 Pro then you almost certainly have Hyper-v enabled. It needs to be disabled, then you must reboot the PC from power down.