Windows 7 Start Button Animator is a free portable tool that allows you to set an animated start button in Windows 7. You can set any animated GIF image as your start button.
How to use:
Run the tool. You will now see an animated orb instead of the old unanimated orb:
Click on the orb icon in the system tray:
Click on Select Orb and choose your desired GIF animation. You can get animated GIF images here.
Change Image Style to the style that best matches to your image.
Change Taskbar Position to the position of your taskbar.
If you want the tool to run everytime Windows starts up then select Run on Startup.
P.1 The start button appears on top of the video I am watching.
S. Select Video Mode in the Settings.
P.2 When I close the tool, the default orb is absent.
S. Click on Restore Orb in the Settings.
P.3 When I click on Restore Orb, the default orb is still absent.
S. Follow the steps listed here: http://www.door2windows.com/windows-troubleshooting/