Hi all.. I have a copy of 10.10.5 installler (downloaded from the Mac App Store when it was still available) as backup, I attempting to use if in VM Fusion, however i doubt that would be issue, as i've used it several times before. However, now i wish to use the same installer, after creating the VM, it starts too proceed with install but i get the error the following error. Anyway around this ? Because i know the installer is fine..