How to Invert Colors in Paint for Windows 7

1. Open your photo in Paint.
2. Click 'Select' from the 'Image' group of the 'Home' tab.
3. Click and drag your mouse to select a portion of the photo, if you only wish to invert part of it. To invert the entire photo, you do not need to perform this step.
4. Right-click the photo, or the selected portion, and choose 'Invert Colors.' The colors are automatically inverted.
5. Hold the 'Ctrl' key and press 'S' to save your work.