Need help to kill Ransomware inside browser( similar arma di carabinieri or FBI)

I had ransomware (arma di carabinieri) or FBI browser ransom virus in my computer, BUt I deleted it with the help of Avast free version yesterday, but today it came back while login in to BBC.com and since then I can only log in into avast website or MSN, other websites redirect to some page which is blocked by avast in my pc. And also sometimes that ransomware is appearing with different webaddress on my IE browser. Avast instantly sends me alert message and the message says ‘HTML Fake lock F Trj’
Does anyone has any solid solution or any information about good anti malware software?

Attach your basic logs. (MBAM, FRST and aswMBR…!!)
Instructions: https://forum.avast.com/index.php?topic=53253.0