How to Stop your PC from falling asleep

Whenever you stop using your PC, your screen will automatically go dark after 15 minutes. Leave it another 10 minutes and your PC will switch to Sleep mode. This can be annoying if you’re downloading something or need to see your PC’s screen. Here's how to extend these default periods.

First, press the Windows key, type choose when to turn off, then click the first option that appears: ‘Choose when to turn off the screen’ (Windows 8 and 10) or ‘Choose when to turn off display’ (Windows 7). 

Using the dropdown menus, you can now select the duration s of inactivity before your PC’s screen goes dark and before your PC goes to sleep. Click ‘Save changes’ when you’ve

finished.

To override these settings and keep your screen on indefinitely, download the free program Insomnia. Go to www.techcenter.dk, click the Insomnia.exe setup file and run it. Now, whenever you want to keep your PC on (perhaps to download a large file), right-click the Insomnia icon in your toolbar, then click Keep Monitor On.