If you're not satisfied with the way a picture was composed with the camera, you can use Paint to crop the photo to improve its composition or to focus on certain elements in it.
Open Paint by clicking the Start button , clicking All Programs, clicking Accessories, and then clicking Paint.
On the Home tab, in the Image group, click Select.
Click and drag to select the element you want to keep in the picture, and then click Crop.
Type a new file name in the File name box, and then click Save.