I am trying to run Virtual Box on Host windows 8 64 Bits but it is nit showing 64 Bits option. I have tried to update my BIOS and found that Virtualization is enabled but my processor does not support VT-x. Is there another way to run VirtualBox on it.
VirtualBox requires Intel's VT-x (or AMD's AMD-v) to be able to host 64-bit guests.
Look up your processor with the manufacturer, and if it does support VT-x, ensure you have no other hypervisors loaded/running (ie: Hyper-v) that may be hogging the VT-x, making it unavailable to VirtualBox.