I run VMware Player 6.0.3 on 64-bit Windows 8.1. My host computer has 12 GB of physical memory and my virtual machine uses 2 GB of memory. And yet, I cannot start my virtual machine because VMware says "not enough physical memory is available to power on this virtual machine with its configured settings."
According to Windows Task Manager, only 15% of my physical memory is reserved for currently running processes. So how is it possible that I don't have enough RAM to run my virtual machine?