Mac's don't need defragging as OS X automatically writes 2Gb or below sized files to one contiguous space on the drive. There are certain cases where's it's needed to free up a large spaces on the drive, but not something everyone has to do.
Far as other Mac maintainence, there really isn't any except to backup one's files regularly. Keeping Software Updated and run a web browser check to make sure the plug-ins are current.
The Space Lens is one of my favorite features in Clean My Mac X. Very helpful for clearing up hard drive space. Clean My Mac X is made by a company called MacPaw. They have a long experience of coding software for the Mac. In my experience, it is the best software for Mac maintenance and cleaning. Delete megatons of junk, malware, and make your Mac faster & more organized. CleanMyMac X packs 30+ tools to help you solve the most common Mac issues. You can use it to manage storage, apps, and monitor the health of your computer. There are even personalized cleanup tips based on how you use your Mac. May 12, 2015 Clean The Print Head Nozzles (Mac OS X) The following contains instructions to check the nozzles for poor print quality and perform cleanings of the print head nozzles as necessary. If print results are faint or streaks are printed, the print head nozzles may be clogged. Those phenomena can be improved by performing print head cleanings or print head deep cleanings. OS X does not require any cleaning, antivirus or third party maintenance apps. All that is needed to keep OS X safe is a little common sense. The common sense part! Never use a torrent site to download.
For Safari and Flash, this check is more accurate
Cleaning Person Mac Os Catalina
Most of those cleaning programs are junk, especially MacKeeper.
Tactics arena mac os.
If your friend got onto your computer and visited a bunch of adult sites, then I would recommend something like OnyX, doing ALL the cleaning and maintenance aspects and rebooting, perhaps followed by a Disk Utility Erase free space.
CCleaner beta is out for OS X, used on PC's and combines cleaning and scrubbing of the drive if setup correctly.
Cleaning Person Cost
If your interested in performance, read my post here
Oct 1, 2011 12:37 AM