Turn off laptop screen when using external monitor

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My MSI allows me to change BIOS and see POST messages on external monitor by default. Can I remove laptop screen and just use external monitor?īut in short, it is absolutely possible, but you may have different results depending on your laptop manufacturer. Select Show only on 2 from the drop-down list. If two monitors are not displayed normally, click Detect. Right-click the Windows desktop and select Display Settings from the drop-down list. How do I turn my laptop screen off when connected to a monitor?