Top 7 Screen Savers for Windows 7.

In one of our previous tutorials I've shared how to customize Windows 7 themes, including how to set your screen saver. Because of the small range of screen savers offered by default with Windows 7, I decided to search the web for other, better looking ones. Unfortunately most of the sceensavers found were not free or, were free to download but you had to register and pay to use them after some time. Some are installed with some additional software such as unwanted toolbars, programs and even viruses, while others, even if they are announced to be compatible with Windows 7, do not actually work on this operating system.
Surprisingly, there's a lot of complexity in finding, downloading and installing such trivial software as screen savers. That's why I will share with you the top seven screen savers I've found, which you can safely install without getting your computer infected.

Most of the links shared below provide either downloadable ".exe" files or ".zip", ".rar" archives that contain executable files. I have tested all of these screen savers and checked them for viruses so you can download them without being concerned that they might harm your computer. For each of these screen savers you can set up additional controls. To do that, go to 'Screen Saver Settings' and configure the parameters you desire, as showed in our article on how to customize Windows 7 themes.

Source -
Top 7 Screen Savers for Windows 7 | Windows 7 Tutorials

hmm these days I dont use screensavers, its better to turn your monitor off if your afk for some time.