Since the launch of macOS Sierra in 2016, the cleaning process of the Mac has gained in simplicity. We recommend that you update your computer, then follow this tutorial in which we explain to you how to make room on your Mac and recover disk space.
1. Manage the storage space .
Apple has developed ane functionality of storage management that allows you to clear your old files and transfer your data on the Cloud.
To access, click on the icon of the Applein the top left of your screen and select about this Mac.
Then, click on the tab Storage.
In the window that appears, it will be displayed the amount of space occupied by Mac os and your applications.
Click Manage on the right, a menu opens with the options to Store in iCloud, Optimize storage, Empty the recycle Bin automatically and Reduce clutter.
On the left, you will see the amount of data contained in iTunes, on your mac, in Documents, Mail, Photos,etc, Click on it, you will get detailed information on all saved files.
Click on Recommendations to return to the list of options given above. To understand what the purpose of each one, read on.
2. Optimize the storage space.
Optimize storage allows you to remove the movies and TV shows you’ve already watched, as well as attachments of your emails.
These will not be permanently lost, because they will be backed up automatically on iCloud.
The videos, they can be re-downloaded from iTunes free of charge.
You simply simply click Optimize and your Mac does the rest.
3. Empty the recycle Bin automatically.
Empty the trash automatically loads as its name suggests, to erase systematically, after a period of 30 days, all documents that are in the recycle Bin.
You therefore have the time to recover a file before it is erased. To use this feature, click Enable.
4. Reducing the clutter.
Reducing the clutter will scan your Mac to locate and delete large files to the older.
Click to review the files, and then in the left panel select the desired category, then click on the cross.
5. Store it in iCloud.
The storage service, cloud-based iCloud offers each account holder Apple 5 Gb of free space.
To increase it, Apple offers a subscription (€0.99 per month for 50 Gb, 2,99 €/month for 200 Gb and $ 9.99/month for 2 Tb).
To save your data to iCloud, click on Store in iCloud , and enter your password.
Photo library iCloud is used to sync photos from your Mac on your iOS devices, and vice-versa. The problem is that your Mac can very quickly clutter up these photos..
To prevent this you have to go in the app Photos → Preferences → tab iCloud, and then select the check boxes photo Library, iCloud and Optimize the storage of the Mac.
This way, your original photos will not be backed up on your but on the cloud.
If you decide to remove them from your computer, they will be available from iCloud, your iPhone and your iPad.
To transfer your iphoto library to an external hard drive, quit the Photos app and copy it to your Photo Library by holding down the button Cmd. And these will be copied and deleted from your Mac.
At the end of this transfer, open the Photos app by holding down the key Option (alt).
In the application, click Photos → Preferences → General , and select Use as a library system.
6. iPhoto and Aperture.
If you were formerly a user of the applications Aperture or iPhoto, and that you have migrated to the Photo application, it may be that you have 3 libraries of images in total.
If you do not intend to use Aperture and iPhoto, so we advise you to copy their content to a Cloud or to an external hard drive, and then delete it from your Mac.
To access your original photos, go to Pictures, select iPhoto Library. Right-click and select Show package contents.
Your iPhoto can be found in the directory Masters or Originals (for older versions), it only remains for you to Export.
7. ITunes library.
To free up a little space on your Mac, look also at the side of iTunes. In fact, you can save your library on an external drive or use the AirPort Time Capsule from Apple. Thanks to the latter, access to your favorite songs as soon as you are connected to the local network.
In order not to overload your Mac of music, why not subscribe to the Apple Music ? Listen to more than 40 million shares, the subscription is individual for $ 9.99/month and the first three months are free.
Otherwise, there is the service iTunes Match (25 €/year) where only an internet connection is required for access to your own library and in the catalogue of Apple Music, from all your iOS devices.
8. The Downloads folder.
Your Downloads folder contains surely files you no longer need (documents, PDF, images, zip files,..).
For example, if you have disk images whose content has already been installed, then they are of no use to you. We suggest you to delete them.
9. Apps intensive.
To further ease your Mac, locate and delete the demanding applications in space, as well as their preferences files. To do this, please do not hesitate to help you with our detailed tutorial.
To identify the files that take up space, open a New Finder window and press simultaneously on the keys Shift (below Shift), Cmd , and H.
Then, press Cmd and F. At the top of the new window, click on Type and select the Other, all the way down.
Scroll down the list that appears until the Size of the file and check its box.
Otherwise, enter a file Size in the search bar in the top right.
Now, to the right of file Size, select is greater than , and unit Mb.
Enter the size you want, 100 Mb for example, and all files exceeding 100 Mb will appear on the screen. You will have to copy them to an external drive or delete them permanently.
There is software, which after a scan of your computer, will identify these applications, you give the size of each file and clean your Mac.
We recommend CleanMyMac X, Daisydisk (10,99 €), and the program Grandperspective and OmniDiskSweeper.
10. The attachments of the Mail.
What is the attachments of your emails ? Think of all of these documents of several Kb or Mb are received each week and are accumulated on your Mac.
To find them go to Mail (~/Library/Mail), the attachments are in the folder Inbox.
To ensure that the attachments are deleted with the email, go to Preferences, then in Erasing the downloads are not modified, and select After the deletion of the message.
The removal of duplicates can also provide you with a space-saving, for this there is the program free Gemini 2.
To avoid duplicates on iTunes, open the app, go to Preferences → Advanced and uncheck Copy to iTunes Media folder when you add files to the library.
12. Leave the apps in the background.
Exit the apps that remain open for several days or restart your Mac regularly also helps to free up space. In fact, the applications create temporary files to save data.
The longer they remain active for a long time, the larger the size of their files increased.
So don’t forget to close the apps not in use and restart your computer.
13. The Cloud services.
The services of a storage cloud are more convenient in order not to overload the memory of your computer and access your documents from anywhere and from any device.
If you have an account with Dropbox or OneDrive, both of these cloud-sync your data automatically.
Be aware that users of Office 365 have 1 Tb of free storage space, this same capacity with Dropbox costs $ 9.99 / month.
To stop the auto sync to Dropbox, open the app, in the menu bar, click the cog Wheel and then on Preferences.
Then, click on the tab Account and Change the settings. It remains for you to uncheck the files and folders that you no longer want to sync on your Mac.
For users of OneDrive, open the application, from the menu bar select Preferences. Click Choose folders, and then click the files no longer sync.