I'm playing around with NTLite and some other 'slimming' tools, trying to tweak a future unattended Win 7 install. Much like I did when I was trying to slim down XP with nLite, after each session of tweaks and adjustments, I'm installing the new source to a spare HDD to see if I like the results.
The other day I read (not here) that it was suggested to do 'test installs' in a VM. I know nothing about using VMs, so my question is, why? Could someone explain the benefit of doing the install in a VM vs. a HDD?
Is it speed? Currently I'm tranferring my tweaked source to a USB 2.0 drive, which takes 4+ minutes. Installing from USB then takes about 8 minutes. Would it be more efficient time-wise to do this with a VM? If not, what is the VM advantage?