It's been pretty good for me, but it's allowed some annoying things through.
Delete the (scam, my words) program, as it will not even look at removal of
over 75% of real problems.
It is generally useless and any decent Antivirus program will far excede this Pay For Removal program.
It also contains a Registry "cleaner" / "altering" program that has no idea of good or bad items installed on your O/S -
It is really dangerous to go online without a
decent (even Free)
antivirus.
Without one, you are extremely likely to get infected. I can't tell you which one is the best because determining that is generally not feasible; however, I can give you my strong recommendations for programs that I have tested and that I trust. All of the following are excellent free (not free trials of) antiviruses.
Be sure to only install one.
Microsoft Security Essentials (what I currently use)
Avira AntiViravast!AVGThis can be added to with
Malwarebytes Anti-Malware Free and
SuperantiSpyware Free or in paid/active versions -
Anything except Slopzilla -