relative new to Truenas (am running EE 24.10) and I was hoping to virtualize some old laptops (Win7, Vista, perhaps XP) and wanted to know if anyone has done this and whether there are any issues/tricks, etc.
Realize that the licenses don’t transfer due to motherboard change but I can tackle the licensing issues separately as long as I can actually virtuallze the old hardware (and get rid of or repurpose some of these laptops - they haven’t been booted up in years).
First use Microsoft tool Disk2VHD to export the drive(s) to a virtual disk image. You’ll then have to convert those disk-images to a format that is compatible with TrueNAS. There are plenty of forum posts and guides all over the forums. So I bet you’ll be able to find a few helpful tips there as well 
Create your zvol, share it out with iscsi , use a disk imaging software to clone the laptop HDD to the drive presented by iscsi. Dismount the zvol from the iscsi and the use this for your virtual machine.
You could also run an imaging agent in the VM and image to it that way.
P.s. I cannot give you detailed instructions , these are just a couple of pointers.
