Here are some general tips to keep your Mac's hard drive trim and slim as possible

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You should never, EVER let a conputer hard drive get completely full, EVER!

With Macs and OS X, you shouldn't let the hard drive get below 15 GBs or less of free data space.

It is important to keep your Mac hard drive clean (not the outside, but inside) to make the most of every gigabyte. Unfortunately, cleaning a Mac isn’t easy as it sounds. That’s why you may need a Mac cleaner software which can help you free up a decent amount of disk space in just a few minutes. Drive Genius was originally developed to keep your Mac hard drive clean and safe from disk errors. The newest edition, 5, has added a comprehensive feature called Malware Scan, part of the automated DrivePulse utility which monitors your Mac for potential issues and viruses. Mar 21, 2013  Spring comes with its own rituals. Here at Macworld, we like to throw open the windows, beat the dust out of the rugs, and straighten up our Mac desktops. Don’t stop at. Cleaner-App will help you to clean startup disk on Mac in minutes. Also, you can change the default folder in the app preferences, then scan and clean up any hard drive connected to Mac. NOTE: If you have any comments, general or technical issues, contact us directly at support@nektony.com and we will respond within one business day. Jun 19, 2018  Even in 2018, MacBooks still have tiny hard drives that fill up quickly. Luckily there are quick and easy ways to free up space on your hard drive. Here’s how to clean up your Mac and reclaim some drive space.

If it does, it's time for some hard drive housecleaning.

Follow some of my tips for cleaning out, deleting and archiving data from your Mac's internal hard drive.

Have you emptied your Mac's Trash icon in the Dock?

If you use iPhoto or Aperture, both have its own trash that needs to be emptied, also.

If you store images in other locations other than iPhoto, then you will have to weed through these to determine what to archive and what to delete.

If you are an iMovie user, iMovie has its own individual Trash location that needs to be emptied, too!

If you use Apple Mail app, Apple Mail also has its own trash area that needs to be emptied, too!

Delete any old or no longer needed emails and/or archive to disc, flash drives or external hard drive, older emails you want to save.

Look through your other Mailboxes and other Mail categories to see If there is other mail you can archive and/or delete.

STAY AWAY FROM DELETING ANY FILES FROM OS X SYSTEM FOLDER!

Look through your Documents folder and delete any type of old useless type files like 'Read Me' type files.

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Again, archive to disc, flash drives, ext. hard drives or delete any old documents you no longer use or immediately need.

Look in your Applications folder, if you have applications you haven't used in a long time, if the app doesn't have a dedicated uninstaller, then you can simply drag it into the OS X Trash icon. IF the application has an uninstaller app, then use it to completely delete the app from your Mac.

To find other large files, download an app called Omni Disk Sweeper.

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Download an app called OnyX for your version of OS X.

When you install and launch it, let it do its initial automatic tests, then go to the cleaning and maintenance tabs and run the maintenance tabs that let OnyX clean out all web browser cache files, web browser histories, system cache files, delete old error log files.

Delete suspicious extensions from Safari, Chrome, and Firefox. Note – If the manual steps above cannot solve your issues:If Advanced Mac Cleaner cannot be removed manually from Mac, it is very possible that Adware, Hijacker or threats similar to Advanced Mac Cleaner may also hide in your Mac OS, we recommend you start an in-depth system scan with Combo Cleaner Antivirus.Combo Cleaner Antivirus is a top-class Mac secure and optimization tool equipped with outstanding features including Antivirus, Disk Cleaner, Duplicate File Finder, Privacy Scanner, Big Files Finder and App Uninstaller. It is worth to giving it a try when your Mac encounters security problem or experiences slow performance.1.

Typically, iTunes and iPhoto libraries are the biggest users of HD space.

move these files/data off of your internal drive to the external hard drive and deleted off of the internal hard drive.

If you have any other large folders of personal data or projects, these should be archived or moved, also, to the optical discs, flash drives or external hard drive and then either archived to disc and/or deleted off your internal hard drive.

Moving iTunes library

Moving iPhoto library

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Moving iMovie projects folder

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Good Luck!