1. Go to a website that offers free computer screensavers, such as FreeScreensavers.com or Free-Screensavers.net. 2. Select a screensaver that you would like to download. 3. Click the download link and save the file to your computer. 4. Once the download is complete, open the file and follow the on-screen instructions to install the screensaver. 5. Once the installation is complete, the screensaver will be ready to use.