If you encounter all these problems, you can look at here. A post of step by step removal instruction will be given below. Please keep reading.
Information about Virgilio.it
Virgilio.it, also known as ricerca.virgilio.it, is a suspected website hijacks many web browsers including Internet Explorer, Google Chrome or Mozilla Firefox. Once infected, your IE/FF/Chrome will be hijacked to random websites or some other third-party websites related to all sorts of adware networks and channels. It is reported by AVG as a dangerous active malware. If you visit this site, your computer will be compromised. Here is a screenshot of this browser hijacker.

Virgilio.it usually gets into your computer stealthily alongside other freeware or shareware downloads. You may possibly get this redirect virus onto your computer by installing spam email attachments. Regular visit to malicious or corrupted websites may lead to malware that triggers this kind of browser hijacker. If you fail to get rid of it, you may put your computer into high risks because it will not only modify your browser settings but also collect your personal information. Anyway, you should beware of this popup.