Does someone else can try that combo to help me and maybe comodo programmers to find a bug? i'm almost sure that it's after a CleanUp! scan that my windows can close properly (i've to end some process manually (windows ask me to do it for 7or8 process)) Then when I close comodo everything is back to normal (but before the CleanUp ! scan everything was fine with comodo) Someone can help me pls? Does CCleaner is better than CleanUp! ? If you use CCleaner have you matched it with comodo?