Kill processes from the command prompt in Windows 7 & Windows 8

Start the commandopront as administrator.

Take out the processlist with: tasklist

Kill the processes with: taskkill /F /IM process.exe

taskkill [/s Computer] [/u Domain\User [/p Password]]] [/fi FilterName] [/pid ProcessID]|[/im ImageName] [/f][/t]

Parameters
/s Computer : Specifies the name or IP address of a remote computer (do not use backslashes). The default is the local computer.
/u Domain \ User : Runs the command with the account permissions of the user specified by User or Domain\User. The default is the permissions of the current logged on user on the computer issuing the command.
/p Password : Specifies the password of the user account that is specified in the /u parameter.
/fi FilterName : Specifies the types of process(es) to include in or exclude from termination. The following are valid filter names, operators, and values.