If you do not sign on to your computer after a specific amount of time, it will turn on the screensaver. Changing the screensaver and modifying its settings is not as easy as changing the screensaver that is displayed when you are already logged on. You can not change the screen saver of the Logon/Welcome screen from within Display properties as you would normally change a screensaver. The only way to edit these settings is through registry hacks. Follow these steps to change the screensaver as well as the inactivity time before the screensaver is activated: 1. First, you will need to start up the Registry Editor. Click the Start button and select Run. Then type regedit in the box and click OK. 2. Once the Registry Editor starts up, navigate through HKEY_USERS, .DEFAULT, Control Panel, and Desktop. 3. First, change the amount of time the system waits after the last activity detected before starting the screensaver. To do this, right-click the Screen Save Time Out entry and selec...