Configuring Dual monitor set up on Windows 7

Click on windows Start Button
Type "Projector in Search

Click on  Connect to a projector



Click on Extend Icon (to extend monitor display on second monitor)

Done !

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Here's another quick method:

Using windows Key Combination:


Press Key with windows Logo (Left of the space bar) and P at the same time
Click on Extend (extends to the right by default)