The reason that I find this software worthless is that every time I scan I get a message that certain files could not be examined because they are "password protected". This is absolute nonsense. NONE of my files are password protected and no other protection program has ever given me this message. The other programs I use are AVG and Enigma SpyHunter and RegHunter and CCleaner. DESPITE running all this, though, I have such crap slowing me down on all 3 of my Dell laptops. Hey, I have a new one this morning that attacks Facebook. All of my comments to posts on one of my laptops are erased before I can hit enter, if they are over 5 words long or, as SOON as I hit enter if less than 5 words. Heard of this yet? BTW, I NEVER visit unknown websites and THIS laptop is almost new, a refurbished a Latitude D800.