Have you stored lots of photos in a folder with file names like picture_1.jpg, picture_2.jpg etc. If its only few photos and you have time, then easily it can renamed manually for every photos. But, the number of photos is large and eventually you will get frustrated to rename each photos. If your OS (operating system) is Windows XP, there is an easy option to do this automatically.

Open the folder that has the photos and select View -> Thumbnails. Click the last picture in the folder and hold down the Shift key and click the first picture, this will select all photos. Right click the first photo and click rename from the menu and Windows XP will highlight the file name for that first photo and you can give a suitable name. After you types the name just click in the white space outside of the photo and simply watch as Windows XP does the trick and renames the entire photos with sequential number to each and every photo in the folder. In this way you can rename other folders that has the photos.