The bubble screensaver of Windows 7 may be the Windows 7 users’ favorite screensaver. In fact, these transparent bubbles can become solid and metallic balls through a little modification. The operation is simple as below: Start-Run-Regedit.
You have a whole collection of photos and would love to view them regularly, preferably as your screensaver. You can use instaSaver for the purpose. It is as easy as 1-2-3.