Using HideAnyWindow here and it's working fine. http://www.morun.net/www/downloads/hideanywindow.html What did you set to hide dwm.exe window? There's another window related with bigmuscle's solution "Information". I hide it with HideAnyWindow by rule: title window include "Information", I did same thing with dwm.exe but this windows always starts with Win 8 and don't know solution to hide it. Can someone help? You need to set it up using window title name "dwm.exe", then it works.