Prevent Windows Shutdown, Hibernate, Restart, Log Off, Standby
Need to prevent Windows shutdown? There are some possible situations where users want to block Windows shutdown.
For example, you’ve configured your PC to automatically shutdown at a specific time but then you need to download a huge file right a few minutes before the auto shutdown scheduler does its job. You can disable the shutdown scheduler and then re-enable it again after the download is finished, or you can use Don’t Sleep to do it easier.
Don’t Sleep is a small-size freeware that enables you to prevent Windows shutdown in only a single click of a button. Download and unzip it, launch it, put a check mark on “block shutdown” option and then send it to tray until you want to disable the blocking.
Aside from the capability of preventing Windows shutdown, Don’t Sleep can also prevent Windows restart, hibernate, standby, log off as well as disabling screensaver and prevent monitor turn-off.

Don’t Sleep also has a built-in scheduler or timer that you can use to specify a certain action to be performed at a user-defined time. You can automatically exit the program and stop the shutdown blocking, or close the program and shutdown Windows, or close the application and automatically restart Windows.
Don’t Sleep is a portable application that can be launched by just a double-click on the exe file after you unzip it. It supports Windows 7, Vista, XP, 2000, 2003, 98 and works with both 32-bit and 64-bit editions. Download Don’t Sleep from the homepage to prevent Windows shutdown, restart, hibernate, standby, and log off.