On occasion, CCleaner can delete files that shouldn't be removed. The problem was quickly cleared up and hasn't recurred since, however, a number of people still view the program with suspicion.Īnd of course, CCleaner has the same downside that applies to all third-party PC cleaners on this list: It doesn't do anything that system tools aren't capable of, which is why it's more of a timesaver than a must-have. Hackers gained remote access to numerous computers that CCleaner was installed on. What we don't likeĬCleaner fell victim to a hacking attack in 2017 after which the program was infected with malware. Lots of developers and system admins might turn their noses up at CCleaner (and similar software), but these tools weren't designed for them in the first place: They're aimed at less technically-versed users looking for an all-in-one program that can help them get rid of junk files on personal computers. Thanks to its advanced settings, you can specify what CCleaner should and should not check. This makes it especially easy to get rid of unneeded files with just a few clicks. CCleaner gathers together settings and features that are normally spread out among system tools and utilities under one roof within a user-friendly interface.

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