The command for shutting down Windows 7 is Code: shutdown with the above command you have to atleast use one argument from the following - /? - Display help. This is the same as not typing any options. /i -Display the graphical user interface (GUI). This must be the first option. /l - Log off. This cannot be used with /m or /d options. /s - Shutdown the computer. /r - Shutdown and restart the computer. /g - Shutdown and restart the computer. After the system is rebooted, restart any registered applications. /a - Abort a system shutdown. This can only be used during the time-out period. /p - Turn off the local computer with no time-out or warning. Can be used with /d and /f options. /h - Hibernate the local computer. Can be used with the /f option. /e - Document the reason for an unexpected shutdown of a computer. /m - \\computer Specify the target computer. /t xxx - Set the time-out period before shutdown to xxx seconds. The valid range is 0-315360000 (10 years), with a default of 30. If the timeout period is greater than 0, the /f parameter is implied. /c - "comment" Comment on the reason for the restart or shutdown. Maximum of 512 characters allowed. /f - Force running applications to close without forewarning users. The /f parameter is implied when a value greater than 0 is specified for the /t parameter. /d [p|u:]xx:yy - Provide the reason for the restart or shutdown. p indicates that the restart or shutdown is planned. u indicates that the reason is user defined. If neither p nor u is specified the restart or shutdown is unplanned.