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Photoshop Error: Scratch disks are full [Fixed in 3 Steps]


Because Photoshop uses your hard drive as a temporary storage space whenever it runs out of RAM, it becomes the Scratch disk. The number of temporary files can trigger the Scratch disk is full error.

The quickest way to solve the problem is to change the Scratch disk allocation. In most cases, the error gets triggered by insufficient storage space.

After that, you can delete Photoshop Temp files and increase the RAM limit. Let’s find out how to do all that from the solutions below.


How do I fix Scratch Disks are full errors in Photoshop?

1.  Change the Scratch disk allocation

  1. Download Photoshop free here.
  2. Launch Photoshop.
  3. Go to Edit > Preferences > Scratch Disks.photoshop scratch disk full error
  4. Now choose your preferred drive or the one with the most space available.scratch disk full photoshop windows 10
  5. If you cannot open the app, launch Photoshop, and as soon as the launching process begins, hold Ctrl + Alt.
  6. A Scratch Disks Preferences window will appear.photoshop won't launch scratch disk error
  7. Now choose your preferred drive or the one with the most space available.

This is the first thing you should do because it’s rather simple and has been confirmed as working by the majority of users. 

Remember that Photoshop needs a lot of swap space, and by default, it will use the operating system or (C:) drive. If that’s not enough, be sure to change it to another one that has a lot more space.


2. Delete Temp files

  1. Go to C:UsersYour userAppDataLocalTemp
  2. Find all the *PST or Photoshop Temp files and delete them.
  3. You can do the same thing by pressing Windows key + R, type %appdata% and hit enter, then go to the Local>Temp folder.clear photoshop temp files

As we already explained, a large number of temp files can trigger this error. A quick fix could be deleting them to create room for new ones.


3. Increase the RAM limit in Photoshop

  1. Launch Photoshop.
  2. Go to Edit > Preferences > Performance.solve scratch disk error photoshop
  3. Under Memory Usage section, you will see Let Photoshop Use option. Move the cursor to adjust the amount of RAM desired or type the number in the box.increase ram in photoshop scratch disk error

By default, Photoshop is only using 60% of the total amount of RAM. If your RAM limit is the default one or you have lowered it even more, it’s just a matter of time until you will bump into the error.

Photoshop will give you the Available RAM and the Ideal Range. You should take into consideration the Ideal Range and increase your RAM usage to about 70% or 80%.

Note that if you go above these numbers, your Windows 10 PC performance will take a noticeable hit and it is not recommended.


That’s about it. Hope that one of these solutions helped you get rid of the Scratch Disks are full error and you can move on with your amazing projects.



This post was written by Vlad Turiceanu and was first posted to WindowsReport



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