How to achieve inverted color in Windows 7 (like Compiz Negative)? [duplicate]

Open up your start menu and type "Magnifier" in the search box. Open the Magnifier utility and zoom to 100%. Now click the sprocket to open up the preferences menu. There should be an option to "Invert colours".

You will have to leave the Magnifier utility running in the background, but this is an easy and native way of accomplishing what you want.

The settings of the utility are saved when closing it, so if you pin it to your taskbar you'll be able to invert colours on the go.

Actually, there is another solution, called NegativeScreen.

It's a little program I created, after I found no other simple and convenient solution.

You can try it out here.