Learn how to duplicate your display on multiple monitors in Windows 7.
- Open the Control Panel from the Start menu.
- Open Display in the Control Panel.
Note: If Display is not available, change View by to Large icons at the top right of the Control Panel.
- Click Change display settings in the Display window.
- Set the Multiple displays drop-down box to Duplicate these displays and then click OK.
- If everything looks OK, click Keep changes.
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