There are a couple of ways to copy and paste an image in Windows 7. One way is to right-click on the image you wish to copy, and select 'Copy' from the menu that appears. Right-click on the area you wish to paste the image, and select the 'Paste' option.
You can also copy and paste an image using the keyboard, according to Digital Trends. Highlight the image you wish to copy and press the "Ctrl" and "C" keys at the same time to copy the image to the clipboard. Highlight the area you wish to paste the image, by clicking inside a folder, for example, and press the "Ctrl" and "V" keys at the same time to paste it.