The best way to save battery on a Windows PC is to adjust your power mode settings, and reduce your brightness.

Limiting the number of programs starting up with your computer can help too: It means fewer apps running in the background, freeing up more memory and other system resources.

Uncheck a box next to an application to remove it from your start-up list. Restart your computer to run Windows 7 without the app running in the background.

Before you run out and buy a new computer, try these simple tweaks to speed things up and make your computer last longer.