Hi all ,
I used to install all linux distros using live CD …
but i want to try to install 11.3 using Virtual machine …
I just want to install opensuse in a free partition on my hard drive i made before… and dual-boot between Opensuse and windows the next time i reboot …
Is there some kind of a guide regarding this ?
Thanks 
What you said is not in concordance to what the title of your post state…
What do you want to do? Install in virtual box or install in real?
If it’s in real, here’s some readings : SDB:Live CD installation for 11.3 - openSUSE
You don’t need a separate partition to install an operating in a virtual machine under VirtualBox. The virtual machine is saved in a file on the host filesystem, whether it is Windows or Linux.