Noise

Computer power options can be tweaked in order to save some battery life, or automatically switched to a different state, like sleep, or hibernate when idle time reaches a specific value. Noise is a small utility which aims to prevent the computer from falling in such states by sending keystrokes at regular intervals.
It can run right after download, since there’s no setup involved to make it work. As such, it can be used directly from a thumb drive, even on other computers, without the fear that stability is affected, because registry entries are not modified in the process.
All features are stored in a simple window, which only needs to be brought up one time to configure keystrokes. An input field needs to be filled in with custom characters. No activity is interrupted while Noise runs, thus only tricking the computer into believing it’s not idle, so it doesn’t fall asleep to interfere with any tasks.
Configured keystrokes don’t appear in text documents, and don’t mess up any active tasks. In order to run with Windows, a shortcut needs to be manually placed in the Startup folder. This provides a comfortable experience right from the start, quietly sitting in the tray area during use.