Article ID: 305788 - View products that this article applies to.
This article was previously published under Q305788
When Windows shuts down, each running process is given 20 seconds to perform cleanup work by default. If a process does not respond within this time-out period, Windows displays the "Wait, End Task, or Cancel" dialog box for the process, which prompts you to wait for another 20 seconds, stop the process, or cancel the shutdown process.
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To prolong this time-out period, you can modify a registry value. The default time-out value (20 seconds) is stored in the WaitToKillAppTimeout value in the following registry key:
HKEY_CURRENT_USER\Control Panel\DesktopThis value is expressed in milliseconds. You can use Registry Editor to modify this value and then restart the computer for the change to take effect.
NOTE: In general, it is best to refrain from increasing the shutdown time. For example, if your computer loses power, your uninterruptible power supply (UPS) may not be able to provide backup power for the computer long enough to allow all the processes, as well as the operating system, to shut down properly.