64 bit guests in VirtualBox
You can operate 64-bit guest systems in VirtualBox. This article describes the necessary prerequisites for this.
64 bit guests
As of version 2.0, VirtualBox supports 64-bit guest systems. Since version 2.1 you can even run 64 bit guest systems if VirtualBox runs under a 32 bit operating system.
Requirement for 64 bit guests:
- You need a 64-bit CPU with hardware virtualization support (Intel-VT or AMD-V). Support must also be enabled in the BIOS - see Activating the Intel VT Virtualization Feature.
- You must enable hardware virtualization for the affected VM. VirtualBox does not support software virtualization for 64 bit guests.
- If you want to use 64 bit guests on a 32 bit operating system, you have to confirm this explicitly in VirtualBox (because the operation of 64 bit guests with 32 bit operating systems causes an additional overhead).
Author: Thomas Niedermeier