I got VAC BANNED on STEAM for no reason.

This Is Gay I Was Vac Banned For No Reason I Did Not Cheat Or Hack Or Whatever Please Help Me Get Un-banned Im Using Windows 7 And That Might Be The Reason And I Also Had Some Programs That Keep My Cpu Usage Down (i Have A Crappy Computer) But Please Help Me In This Ban I Did Not Cheat Or Hack And I Will Never Cheat Or Hack Please Send Steam A Msg Telling Them I     jessie198789    Did Not Cheat Or Hack Please Please Help I Love Playing Online With My Friends And Now I Cant Do That.....