How to change virtual machine settings in VMWare Player

My work is too cheap to spring for a full version of VMWare.  Well, that’s not that fair to say – the people who need it get it, and the rest of us get VMWare Player.  And honestly, I don’t need it since I rarely use VMs.

Point is: The memory and processor settings are locked in VMWare Player, and my virtual machine was lagging.


  • Turn off the VM completely.  No suspend or save state or any of that jazz.
  • Close VMWare Player
  • Open the VM’s .vmx file in a text editor
  • Change or add the numvcpus key to how many CPUs you want.  Ex: numvcpus = “4” (Keep in mind this cannot be more than your actual machine, I think)
  • Change the memsize key to how much memory you wish to allocate.  Ex: memsize = “4096”
  • Save
  • Re-open VM in vmware

This will work with any other settings you need, but those are probably the most useful.  Good luck!

Comments (3)

  1. Joe wrote::

    Hey, that worked fine for me thanks. It is important that you first shutdown the VM completly before you make any changes.

    Tuesday, October 22, 2013 at 4:39 pm #
  2. Peter wrote::

    This did the trick!


    Saturday, March 1, 2014 at 11:48 am #
  3. Angel wrote::

    This worked perfectly. Thank you.

    Wednesday, April 22, 2015 at 3:34 am #