Why my VB not offers 64bit versions?

Discussions related to using VirtualBox on Windows hosts.
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Inatoff
Posts: 3
Joined: 21. Feb 2015, 19:48

Why my VB not offers 64bit versions?

Post by Inatoff »

Greetings, i have a problem with installing windows server 2012 r2 on my VB.
my system is : Intell Pentium i7 4700MQ (Windows 8.1 64bit)
and in the list of choosing system i can choose only 32 bit's system? how can i repair it? or where is the problem?
Thank you.
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Why my VB not offers 64bit versions?

Post by 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.
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