How to Check windows experience index

Right click on my computer then you will see following image then click on windows experience index which is located under system category

Then this screen will appear then click refresh now button, if you have installed new hardware there will be a message new hardware detected.

now you can see your windows experience index which describe the performance of your computer

What are those indexes means?

1.0 to 1.9 - Basic performance. Even a component with a 1.0 subscore meets the Windows 7 minimum requirements.

2.0 to 2.9 - Enhanced performance. Windows Aero may be available.

3.0 to 3.9 - Windows Aero will be enabled.

4.0 to 4.9 - Good performance with high-resolution displays and multiple displays.

5.0 to 5.9 - Capable of running high-end video games, 3D modeling applications, and high-end video editing applications.

6.0 to 6.9 - Supports DirectX 10 graphics with high frame rates at high resolutions.

7.0 to 7.9 - Highest performance level available. Reserved for systems with SSD hard drive, high-end graphics card, and multi-core (i.e. 8 or more) processor.