A slightly unusual query, and one I have :google:d for without success.
I have a fleet of laptops used for delivering MCT courses, with Server 2008R2 installed on them (most courses run under HyperV now)
I would quite like to upgrade them to Windows 8 Pro (mainly to take advantage of hibernation, which is not compatible with 2008R2 HyperV).
Clearly I could nuke them (and will if there aren’t any better solutions) but I would prefer to preserve the existing set of VMs, as well as avoiding hunting for drivers etc. Is there any way of fooling the Win 8 installer into thinking the OS is Win7 rather than Server 2008R2 as (fairly obviously) it won’t let me do an upgrade install from Server to Desktop.