Did you know you can run screensaver on your system with a single click? If you have any screensaver file with .scr extension (you can run a search on your pc. All you need to do is click the start button and serch for .scr)
You can also download it from the internet, there are thousands of sites for for free screensaver download.
Pick a screensaver you want. You can preview it by double-clicking it.
Right click on the file, choose Send To, and then click Desktop (create shortcut).
To activate the screensaver, double-click the icon on your desktop and your screensaver pops up.