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.
Give your Mac the best care possible, with free Mac cleaner software to keep it free from junk, clean and optimize your operating system, hard drive and memory. With Mac cleaning software, you can get your Mac running at peak performance once again. To remove Similar Photo Cleaner completely, we recommend you to use Spyhunter for Mac. It can help you remove files, folders, and registry keys of Similar Photo Cleaner and uninstall hijackers, toolbars, and unwanted add-ons from the Safari browser. The trial version of Spyhunter for Mac offers virus scan and 1-time removal for FREE. Click on Uninstall a Program and find Duplicate Photo Cleaner; Highlight the program and then click Remove; If you are prompted to confirm the removal of the program, click Yes; Mac. Open Finder; In the Finder sidebar, click on Applications; Drag Duplicate Photo Cleaner from the Applications folder to the Trash (found at the end of the Dock. Photos Duplicate Cleaner easily locates and removes duplicate photos from your Mac. It’s available as a free download from the Mac App Store. Locate and delete similar photos. No.5 Free Mac cleaner: Dr. Cleaner – Free memory, disk, system cleaner. Cleaner is one free Mac cleaning app to offer Memory Optimization, Disk Cleaning and System Monitoring to keep your Mac optimized for the best performance. Smart and accurate selection for duplicates scan and remove on Mac with OS X 10.6.6 or later.
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.
For Safari and Flash, this check is more accurate
Most of those cleaning programs are junk, especially MacKeeper.
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.
If your interested in performance, read my post here
Oct 1, 2011 12:37 AM
Note: Photos Duplicate Cleaner has been replaced with Duplicate Photos Fixer Pro
Photos Duplicate Cleaner minimizes the tedious efforts used for searching your entire system for duplicate photos. Instead of searching your Mac manually for duplicates, select a particular folder and let this cleaner do its work. As a result, you’ll save ample of space on your Mac. Photos Duplicate Cleaner creates groups of duplicate photos so that it is easy to find out the number of occurrences of similar photos and clean selected duplicates. All copies of a photo are deleted except the original one. This can save you invaluable disk space not just on your Mac but even on any external storage device.
Photos Duplicate Cleaner works on:
Free Similar Photo Cleaner For Macbook Air
- Pictures that are exactly the same regardless of their names
- Duplicate photos on any external storage device
- Multiple copies created of a photograph
Features:
Free Similar Photo Cleaner For Macbook Pro
- User friendly interface
- No manual efforts required to search and delete duplicates in a folder
- Recover up to gigabytes of disk space by cleaning all duplicate photos
- One-click cleaner feature saves you time
- You can select or unselect groups of duplicate photos before cleaning them