hello sir/madam thank you very much for ur suggession . even i got the same problem. i couldn't open my control panel and also system properties. after i tried combofix.exe , now i can able to access them , thank you very much. and also i would like to say hi to everyone in this community,thank u very much. and i have a small , shall i keep combofix exe in my system or i should remove it and also the CFscript. any way thank you very much. thank a lot. expecting your reply soon.