Is this memory dump (Vista.mem) file needed during the operation of the VM? it was created yesterday and its size is 1GB, can I delete it or will it be delete by Parallels?. I'm running a Vista VM machine. I also know that the .sav file is the one used while pausing a VM thanks
Yes, this is some kind of memory dump. The file makes several VM operations faster and cannot be deleted while VM is running. It will be deleted automatically when you power off the VM. The .sav file contains your VM's other settings when you suspend it. It is not recommended to delete it as well, otherwise you loose your suspended state.