Human: How to turn an old laptop into a desktop? Assistant: 
Turn an Old Laptop into a Desktop
1. Check the display connection on your laptop and monitor.
2. Plug your laptop and monitor in.
3. Connect the mouse and keyboard to your laptop.
4. Connect the laptop to the monitor using an HDMI cable or HDMI cable and adapter.
5. Power on your computer and log in.
6. Click Windows Start followed by the Gear icon.
7. Click System followed by Display in the panel to the left.
8. Click Detect and set "Multiple Displays" to "Duplicate".
9. Open the Control Panel.
10. Click Hardware and Sound followed by Power Options.
11. Click Choose what closing the lid does.
12. Set the laptop to "Do nothing" when the lid is closed.