
Then expand them when you need to use them again.ĭid you empty the Trash? When you move a file to the Trash, its storage space doesn't become available until you empty the Trash. If you possibly can, before upgrading to Catalina, ensure that your Mac boots from an SSD, even if it’s only small and most of your files will still be kept on a hard disk. If you don't want to delete certain files, you might be able to save space by compressing them. Use of the SSD component in a Fusion Drive as a cache should cushion some impairment of performance, but booting from a hard drive definitely isn’t a good choice. Check the Users folder on Macintosh HD for any shared files that you no longer need to share.If your Mac is set up for multiple users, delete users that no longer need access to your Mac. Or ask them to follow the steps in this article after logging in to their user account. Also check the Users folder on Macintosh HD for any undeleted data belonging to deleted users.If you use your Mac to back up your iPhone or iPad, you can delete old backups.Also choose Mailbox > Erase Deleted Items. If you use the Mail app for your email, choose Mailbox > Erase Junk Mail from the menu bar in Mail. As your computer does constant read and write to your hard drive, over time it will become fragmented and files end up everywhere.Delete files in your Downloads folder. Open this folder from the Dock, or by choosing Go > Downloads from the menu bar in the Finder.Delete music, movies, podcasts, or other media, especially if it's media that you can stream or download again as needed.

You can also delete files that you no longer need. If you have another storage device, such as an external drive connected to your Mac, you can move files to that device. Media files such as photos and videos can use a lot of storage space, so you can take steps such as these:
