Norton Utilities is a well-known and very classic PC utilities software for DOS and Windows, developed by Peter Norton in 1982 (later sold to Symantec Corporation). It integrates disk editing, disk diagnosis and repair, system optimization, system performance testing, virus detection and removal and many other functions in one place, can help users quickly and intelligently optimize the system, so as to improve user computer performance.

Avira used to be bundled with TuneUp Utilities for sale, but it's a pity that AVG successfully became a listed company (i.e.: went public) in 2012 and acquired TuneUp Utilities as a whole - became now AVG PC TuneUp, which directly made the marriage between Avira and TuneUp Utilities impossible. After that, the Norman company from Norway once got very close to 360Amigo System Speedup (now ToolWiz's developer from China) by way of bundling too, but in the end Avira took over 360Amigo before Norman. Then 360Amigo was first offered as an OEM component of Avira's advanced versions of security software, and then fully acquired.

When it comes to system junk files cleaning software on Windows, many users will recommend Piriform's CCleaner first - which has almost become one of must-have tools for any computer. CCleaner is free, small, has multi-language interface, and runs fast. Especially, it is fairly stable and safe to use, even the novice computer user won't encounter a problem due to misuse. CCleaner for Mac is a free system useless files cleaner, system optimizer and privacy protector specially designed and developed for Mac users. It is actually the Mac version of CCleaner.

Any OS used for a long time will generate a lot of junk files, system errors and obvious loss on performance. At this time, we need turn to some professional cleaning, optimizing tools to improve the performance and stability of computer.

TuneUp Utilities was originally a heavyweight, humanized and easy-to-use system cleaning, optimizing, repairing & maintaining utility (software suite) for Windows with a long history of development (started in 1997) from Germany. After acquired by AVG Technologies (formerly Grisoft from Czech Republic) from Netherlands in 2011, it was renamed to AVG PC TuneUp (now AVG TuneUp).