| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="configbasics">
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| 4 | <title>Virtual Machine Configuration</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>When you select a virtual machine from the list in the VirtualBox Manager window, you will see a summary of that
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| 8 | machine's settings on the right. </p>
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| 9 | <p>Clicking on <b outputclass="bold">Settings</b> displays a window, where you can configure many of the properties
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| 10 | of the selected VM. But be careful when changing VM settings. It is possible to change all VM settings after
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| 11 | installing a guest OS, but certain changes might prevent a guest OS from functioning correctly if done after
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| 12 | installation. </p>
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| 13 | <note>
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| 14 | <p>The <b outputclass="bold">Settings</b> button is disabled while a VM is either in the Running or Saved state.
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| 15 | This is because the <b outputclass="bold">Settings</b> window enables you to change fundamental characteristics
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| 16 | of the virtual machine that is created for your guest OS. For example, the guest OS may not perform well if half
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| 17 | of its memory is taken away. As a result, if the <b outputclass="bold">Settings</b> button is disabled, shut
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| 18 | down the current VM first. </p>
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| 19 | </note>
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| 20 | <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> provides a wide range of parameters that can be changed for
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| 21 | a virtual machine. The various settings that can be changed in the <b outputclass="bold">Settings</b> window are
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| 22 | described in detail in <xref href="BasicConcepts.dita#BasicConcepts"/>. Even more parameters are available when
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| 23 | using the <userinput>VBoxManage</userinput> command line interface. See <xref href="vboxmanage.dita#vboxmanage"/>. </p>
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| 24 | </body>
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| 25 |
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| 26 | </topic>
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