I spent about an hour trying to get this to work, someone in 2013 on the forums said you had to set the drive to IDE in VMWare for it to work, so I was playing around with different combinations of DVD on IDE on controller 0 and 1, positions 0 and 1, SCSI also, finally realized that was in
2013. Downloaded and swapped in the 5.7 release. No luck. Downloaded and swapped in the 4.x release. Success! However now the network adapter doesn't work in this version
Only changes between the working network/no sda0 in 6.0 and broken network/found sda0 were swapping out the ISO in the Hyper-V settings.
Windows Hyper-V Server 2012 R2