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Virtualbox only shows 32-bit VMs even when i use 64-bit CPU

I use 64-bit CPU and i turned virtualisation on. I tried enabling HyperV on and off a couple of times, but it didn't work(HyperV doesn't work either). Everything works fine on Linux.

tetsmaster
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    Your inability to select a 64-bit operating system within VirtualBox is directly linked to the fact Hyper-V is enabled. If you were unable to install a 64-bit operating system on a Hyper-V VM, that is directly linked to another software package already using hardware virtualization. This problem is well documented by several potential duplicates. – Ramhound Apr 27 '20 at 16:06
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    I myself had to create a Windows ten boot menu option (using BCDEdit) to enable or disable Hyper-V at boot time. It's a pain but it is the only thing I have found that works and allows me to use either system. See this for more info. – Señor CMasMas Apr 27 '20 at 16:50

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