Logon Screen Rotator

Logon Screen Rotator is a free application that will change the logon background image to an image of your choosing and also at a time you select. Current options include: each day, each logon and each computer lock.

You may choose individual images or folders of images (which will be monitored by the application for changes) for the program to select random images from.

If you only want to change the image manually, this is also possible.