I downloaded the LTS version of ubuntu off the webpage and upon install to Virtualbox the error message says my pc is not 64bit. my pc is only i686? I use a hp pavilion x360 with windows 10. I thought it was 64 bit? message says: This kernel requires requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot. Please use a kernel appropriate for your PC. any help? Cheers

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    Maybe this message is from Ubuntu running as a guest on VirtualBox? In which case, it is the VirtualBox guest you created for Ubuntu that isn't 64-bit. – user459652 Nov 21 '18 at 17:31

NOTE: GO to Bios and set Virtualization and Hyper-v to ENABLE in ubuntu as well.

(This will enble the option for 64-bit in all os) by default it is DISABLED

just restart and goto BIOS and you are good to go.

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