Windows OS is designed to expend less energy in an attempt to save more power. This, it intends to achieve via auto turning off the display when there no activity reported. However, this is not the case always. At times, you might not be near the computer but don’t want it to shut off the display or go into standby after every few seconds. So, how do you prevent computer from Sleeping or Locking? Simple, by using Caffeine.
Prevent computer from Sleeping or Locking
Caffeine is a simple and light weight utility that prevents your machine from slipping into standby mode thereby stopping sleep mode to come into effect. The program offers a simple solution for preventing your computer from going into standby mode or shutting down. This it does by deceiving Windows via simulation method.
A cup of coffee ideally contains 80–175 mg of caffeine, depending on the quality of beans used, sufficient enough to temporarily make you feel more awake and energetic, but all that caffeine application requires to temporarily keep your machine awake is a key press simulation once every 59 seconds. Moreover, it does not give your machine jitters like caffeine in a cup of coffee.
Once downloaded and installed, the application silently resides in the system tray and displays a control panel if you right-click the icon. This panel offers simple activate or deactivate options, as well as time spacing (1 to 24 hours) for keeping the computer alive. You can replace the function of default F15 key with the Shift key.
Apart from these, the software features support for various command line options, thereby giving you some additional ways to customize behavior of the application. Additionally, you can also set it to emulate the Shift key instead of the default F15 combination, to prevent sleep, but at the same time to allow the screensaver to launch, as well as to start the software disabled.
Caffeine for Windows free download
So if you need to prevent your computer from Sleeping or Locking you should check out this free tool. It features a command line mode that is aimed at advanced users. Beginners are advised to make use of the tray utility.
Coffee Portable, Milk & Sugar, Sleep Preventer and Mouse Jiggler are other similar tools you may want to check out.