virtualbox.org

I've a AMD Athlon 4200+ X2 64bit, my SO is Windows XP 32bit, i've tryed to install a Windows Vista Ultimate 64bit on VirtualBox but when is starting the System it says that my system isn't 64bit...

Maybe is this a problem about mi primary SO (that is only 32bit)?

My scuses for bad english but i'm italian

Thanks

Read the FAQ about vt-x/amd-v BIOS issues.

debiru wrote:I've a AMD Athlon 4200+ X2 64bit, my SO is Windows XP 32bit, i've tryed to install a Windows Vista Ultimate 64bit on VirtualBox but when is starting the System it says that my system isn't 64bit...

Maybe is this a problem about mi primary SO (that is only 32bit)?

My scuses for bad english but i'm italian

Thanks

Virtualbox cannot do this if your host is 32 bit. You must install a 64 bit OS on your computer first.

I would like to add one thing : VMware Workstation is able to run 64 bit guests under 32 bit hosts, as long as your CPU support Intel VT-x or AMD AMD-V. I have personally tried this myself previously. Of course, VMware Workstation is not a free product.

Same for VBOX. It should be possible, if requirements (VT) are fullfilled.