In the search box, type screensaver and then click on Change screen saver. To open the screensaver control box, click the Windows Start button. Want some more help with personalising your PC? Our friendly tech team can help you with one-to-one support on a range of tech issues. You don't need to use one, but if you do, you can adjust how long it is before it kicks in, or even turn it off altogether. The modern flatscreen monitors that we use with desktops and on laptop panels don't suffer from ghosting, but Windows still includes screensavers that would be familiar to a time-traveller visiting us now from the 1990s. Screensavers, which prevented 'ghosting' or ' burn-in', used to be essential back when monitors were big clunky CRT devices. Want to change the delay before your screensaver kicks in? Follow our handy how-to steps