Those features are:
Set up Dual Monitors in Windows 7
Method 1: By Keyboard Shortcut:
You can press Windows Logo Key + P in order to set up dual monitors. Here you will get all the above said three options as well as the default “Computer Only” option. Method 2: By the “Screen Resolution: Method: 1: Right-click on any empty area of the desktop and select Screen Resolution 2: Now click on the “Multiple displays” drop-down list, and click on Extend these displays, or Duplicate these displays.
If you can’t see the Multiple Display drop-down list, then click on Detect. If it does not work, then restart your PC and again follow the step 1 and step 2. Post comments here, If you find any difficulties to set up dual monitors in Windows 7. Do remember that before starting the procedure, you should connect the second monitor to your computer and do not forget to power on the monitor. These Dual Monitor Tools for Windows 10 lets you manage multiple monitors easily.