The process "winlogon.exe" runs in the background.
Winlogon is a part of the Windows Login subsystem, and is necessary for user authorization and Windows activation checks.
http://www.neuber.com/taskmanager/proces... Note: The winlogon.exe file is located in the folder C:\Windows\System32. In other cases, winlogon.exe is a virus, spyware, trojan or worm! Check this with
Security Task Manager." Microsoft designed Windows so many small applications perform their tasks without a user knowing about it. Normally, this will run smoothly and without flaw, but every once in a while, an issue can come up. Winlogon.exe is an application that runs on start-up, and its primary function is to monitor the use of other applications. Winlogon.exe typically only runs for about a minute or two when Windows first boots up, so if for some reason it is still running five or 10 minutes later, it could be infected. Spyware and other malware would infect this application because it can manipulate other programs in Windows, causing problems. If this is the case, the file might need to be removed. if you want to remove this from Open "My Computer" and select the "C:" drive. Double click the "Windows" folder, then select "System 32." Navigate through the System 32 folder until you find "Winlogon.exe." Click the "Winlogon.exe" file and hit "Delete." Select "Yes" when asked if you're sure you want to remove the program.
