Problems with x64 guest(s) - specifically Win2k3

Discussions related to using VirtualBox on Mac OS X hosts.
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t8shter
Posts: 6
Joined: 20. Feb 2009, 18:37

Problems with x64 guest(s) - specifically Win2k3

Post by t8shter »

I installed Windows 2003 x64 last night as a guest. It is running fine, but when I try to launch another VM (any Windows OS), I get this error:

"An active VM already uses Intel VT-x hardware acceleration. It is not allowed to simultaneously use software virtualization. (VERR_ACESS_DENIED). Unknown error creating VM (VERR_ACCESS_DENIED). Result Code: NS_ERROR_FAILURE (0x80004005), Component: Console, Interface: IConsole {e3c6d4a1-a935-47ca-b16d-f9e9c496e53e|"

Host: Mac OSX
Guest that is running: Windows 2003 x64
Guest that I attempted to Launch: Windows XP Pro Service Pack 3

Does anyone know if there is a way around this? I'd really like to have both OS' running.
Simak
Posts: 37
Joined: 29. Oct 2008, 13:06
Location: Klagenfurt, Österreich (Austria)

Post by Simak »

If You have Vt-x/AMD-V activated for at least one already running guest which is mandatory for 64 Bit operating systems then You have to activate the Vt-x/AMD-V Option for all other guest You want to start as well where it does not matter whether these guests are 32 or 64 Bit systems.
Helmut Carl Simak
t8shter
Posts: 6
Joined: 20. Feb 2009, 18:37

thanks, that worked

Post by t8shter »

Thank you, that seems to have worked.
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