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<topic xml:lang="en-us" id="configbasics">
  <title>Configure the Settings for a VM</title>
  
  <body>
    <p>You may need to change the configuration of a Virtual Machine (VM) after it has been created. For example, you may want to add more memory.</p>
    <p>Be careful when changing VM settings. It is possible to change all VM settings after installing a guest OS, but
      certain changes might prevent a guest OS from functioning correctly if done after installation.</p>
    <p>To change the settings for a VM:<ol id="ol_imv_1dp_ccc">
        <li>Select the VM in the <uicontrol>Machines</uicontrol> list.</li>
        <li>Ensure the VM is Powered off, not Running or Saved. You can't change fundamental characteristics of the VM if it is running.</li>
        <li>Click <uicontrol>Settings</uicontrol> to see the current configuration for the VM, and change the parameters as required. </li>
      </ol></p>
    <p>The parameters are described in detail in <xref href="settings-window.dita"/>.</p>
    <p>Even more parameters are available when using the <userinput>VBoxManage</userinput> command line interface. See
        <xref href="vboxmanage.dita#vboxmanage"/>. </p>
  </body>
  
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