I tried those malware programs, nothing founded.
Tried also system image recovery file and Avast! version 7.0.1474, works perfect!
Then upgraded to version Avast! 8.0.1489 and after restarting, then windows welcome flag, then black screen and automatic reboot, then have to do starting from system recovery point again. Looks like my windows 7 64bit system doesn't work with version 8.0.1489 after all several upgrading times, maybe motherboard is too old (Abit AB9pro)!!!. Thanks anyway!!