How to rename multiple files from Win7 system one button

This technique is relatively simple, I believe many friends will, here, ugly, I hope to give a little help to the novice friends who use Windows 7, do not laugh.
For example, the photos that you export from the camera are all under the name "Number", many friends will want to re-name them in batches, such as "Hong Kong Disney 001, Hong Kong Disney 002" and so on.
Under Windows 7, batch renaming actually only needs one button:
Select multiple files, press "Ctrl+A” or press "Ctrl” then click the file you want to modify with the mouse, select Then press “F2” or right click on the selected file “rename”, the end of each file will be distinguished by "(number).jpg”