If it is a Virtual PC .vhd file, then I can make a copy of it so that if the .vhd goes bad for any reason (catch a virus or installed undesirable software), then I can use that old .vhd and start a new machine as if nothing happened.
Can I do that with a .vdi used by VirtualBox too?
the .vdi is about 3GB and comes from a fresh installation of Win XP from DVD-ROM.
thanks.