To fix certain problems with your system, VMware documentation or a VMware Technical Support representative might instruct you to change or add virtual machine configuration parameters.

Important: Changing or adding parameters when a system does not have problems might lead to decreased system performance and instability.

The following conditions apply:

  • To change a parameter, you must change the existing value for the keyword/value pair. For example, if the existing pair is keyword/value, and you change it to keyword/value2, the new keyword is value2.
  • You cannot delete a configuration parameter entry.
Caution: You must assign a value to configuration parameter keywords. If you do not assign a value, the keyword might receive a value of 0, false, or disable, which might result in a virtual machine that cannot power on.


Power off the virtual machine.


  1. Click Virtual Machines in the VMware Host Client inventory.
  2. Right-click a virtual machine in the list and select Edit settings from the pop-up menu.
  3. On the VM Options tab, expand Advanced.
  4. In the Configuration Parameters row, click Edit Configuration.
    The Configuration Parameters dialog box opens.
  5. (Optional) To add a parameter, click Add Parameter and enter a name and value for the parameter.
  6. (Optional) To change a parameter, type a new value in the Value text box for that parameter.
  7. Click OK to save your changes and exit the Configuration Parameters dialog box.
  8. Click Save.