I bought the stick after using Norton Security Free, to try to get rid of a ransom e-mailer. The stick was suggested by Norton. I followed instructions and let the scanner run, being advised to take a break because it might take some time. When I came back a few hours later I was informed that malicious files were in my PC's system and advised to quarantine. I let the stick do its job and I haven't had any more e-mails from said ransomer. What can I say, job done and thanks. Not a lot of money well spent.
Bottom Line: Yes, I would recommend this to a friend