Are you a macOS user who constantly works on applications such as Adobe Photoshop/ Premiere Pro, and Final Cut Pro? Then, you’ve faced errors associated with that scratch disks. One of the prevailing errors when you regularly use these programs is the fact that you couldn’t open them because the scratch disks are full. We’re here to give you a comprehensive guide on how to resolve your “Scratch Disks Are Full” problem. How Do I Fix “Scratch Disks Are Full” Error? Solution 01. Clear Up Your Cache Within Photoshop Solution 02. Eliminate Temporary Files Solution 03. Clear Up Space On Your Disk Solution 04. Modify The Scratch Disk Solution 05. Buy A New Drive Solution 06. The 15% Rule Solution 07. Free Up More RAM In macOS Terminal Solution 08. Discover Photoshop Folder Hidden Files Solution 09. Disk Defragmentation FAQs about Scratch Disks Are Full 1. Can I Use An External Hard Drive as a Scratch Disk in Photoshop? Yes, you can use an external hard drive or internal drive as your scratch disk. But in this case, you need to have a fast connection like Thunderbolt. 2. Is It Safe to Delete Scratch Disk in Photoshop? Delete scratch disk in Photoshop means deleting cache and temp files. These files are safe to delete and won't affect the performance of Photoshop. 3. How Do I Empty the Scratch Disk in Photoshop? Open Photoshop and click the menu button for "Edit", then click "Purge", and choose "All". Click "OK" at the end.