Unzip the file using WinZip or another program. Run the unzipped copy of the screen saver (Thailand.exe). If you are using Windows 3.1: open "Desktop Controls" in Control Panels and select the ...

Click “OK” and close the Registry Editor. On the right side, double-click the Prevent changing screen saver setting to open its Properties window. Select Enabled, click Apply and exit.

An Apple TV box is especially simple to use for custom screensavers. Just open the Photos app, which should be synced with the rest of your Apple devices, and select an entire album to use.