Learn how to quickly resolve scratch disk full error in Photoshop.

Solution

To troubleshoot scratch disk full errors, do one or more actions listed below:

Free up additional disk space

Note: 

It's recommended to have 50 GB of free space on your OS hard drive while working with Photoshop. Additional free space may be required based on the file type you're working with. For details, see Photoshop's system requirements.

Free up additional hard drive space by deleting unnecessary files from the scratch disk, or by moving your files off the scratch disk to another storage location.

For example, if your assigned scratch disk on your Windows machine is drive C:\, you can simply clean up and delete the files you no longer need. You can also move your files to a new location on your machine, let's say drive D:\. This will clear some space on your drive C:\ and you can continue using it as your scratch disk.

Similarly, if your assigned scratch disk on your macOS machine is Macintosh HD, you can simply clean up and delete the files you no longer need. You can also move your files to an external drive, if required.