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I moved to a new system with Windows 8.1, Asus H97-PLUS and Intel cpu I5-4590. I installed VirtualBox V4.3.20. When creating a new virtual machine I can only select 32 bit systems. However I want to create a 64 bit system. What can I do?

See: I have a 64bit host, but can't install 64bit guests

loukingjr wrote:See: I have a 64bit host, but can't install 64bit guests

Thanks a lot. I had to enable the virtualization omdeed.

Welcome.