Thanks everyone for the advices!!!
I don't know whats happend suddenly!??? The problem has fixed themself!!!! It's possible that it was the yahoos fault??? Well i discovered some Trojans! I run AVAST because it's free! After first scanning (when the trojans goes grace to avast in the quarantine) i dont have any messages that i still have viruses! But they are still on my computer??? What do you think?????
Excuse me, because i have poste a question who dont have something in common with CCleaner but if you have the time and its allowed, need your opinion on my question: what freeware antiviruses its more good??? Kaspersky blocked my computer...
AVAST who is my antivirus in present, it is ok???? It is too weak or ....?