exe file that is currently running as a process that is required by Windows. For example, the security update that is described in security bulletin MS04-011 updates many DLLs that are loaded in core operating system processes that can't be stopped without shutting down Windows. However, the process in which the DLL is loaded can't be stopped while Windows is running. Stopping the process will unload the DLL that is required to complete the update. So the security update must stop the process that causes the DLL to be loaded. The security update can't be completed while the DLL is loaded. The security update updates a DLL that is loaded in one or more processes that are required by Windows.This article describes why you may be prompted to restart your Microsoft Windows-based computer after you install a security update.Īpplies to: Windows 10 - all editions, Windows Server 2012 R2 Original KB number: 887012 Why you may be prompted to restart your computerĪfter you install a security update, you may be prompted to restart your computer if one of the following conditions is true: Why you may be prompted to restart your computer after you install a security update on a Windows-based computer