Storage Disks For Mac

Posted : admin On 1/31/2022

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Why Does Photoshop Show Scratch disk Full error on Mac?

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There are several issues that you as a user has to face while working on your Mac. A Mac allocates dedicated memory to any installed apps or software to flawlessly execute tasks without lag. Whenever a user runs up an app or software, they use a portion of system memory to perform user commands. As the task is carried out, a number of temp files and cache are created in the background.

These temp files soon take up the memory space required for the software to run properly. If that memory is exceedingly full, there’d be issues in software functioning and possible errors would pop-up on your mac screens. Such errors may result in software crash every time you put some load on it or may even cause your Mac to reboot without warning, thus, costing you your unsaved or ongoing work. This error stating ‘Scratch Disk are Full’ is most commonly found while working in Photoshop. So, all the photoshop users require extra care to avoid errors.

If you happen to use Adobe Photoshop for professional or work-related purpose on your Mac, then you must’ve surely seen this error on the screen while opening Photoshop “Could not initialize Photoshop because the scratch disk is full”. Have you ever wondered what is a scratch disk? And what does it particularly have to do with Photoshop? You can rest your quest now!

We’re here to resolve all your doubts by offering 4 most useful solutions that’ll help you fix “Scratch disks are full’ error on Mac. But before jumping on to these solutions let’s clear a few basic concepts!

What is a Scratch Disk?

When you’re using advanced software tools like Adobe Photoshop, Final cut Pro or Premiere Pro on any device they occupy a certain amount of virtual space or memory. This virtual space is like the cache memory which stores all temporary files and data. So, Scratch disk is that dedicated virtual memory space allotted to Photoshop which is used when there is not enough RAM to complete a task. So, while working on heavy projects or large files this space is often consumed with temp files and thereby you encounter the “Scratch disk is full” error on your Mac.

4 Solutions to Fix Photoshop Scratch Disk is Full Error on Mac

If you’re wondering how to clear Photoshop cache to fix all such “Scratch disk’ related errors on Mac we’ve compiled 4 simple and effective solutions for you. Let’s discuss each one of them in detail.

1. Clearing Photoshop Cache

If you don’t ever notice the cache memory, it’ll expand like wildfire eating up a huge amount of disk space on your device. So, before the damage happens let’s see how we can get rid of Photoshop cache to keep the Scratch disk empty.

Photoshop comprises of an in-built tool that deals with cache memory. Here’s what you need to do:

  • Launch Photoshop on your Mac and tap the “Edit” button in menu bar.
  • Now hover over “Purge” and wait until you see four new options which include: Undo, Clipboard, Histories, All.
  • You can either select individual item or tap “All” to get rid of all kinds of cache memory on Photoshop.

Deleting Photoshop cache memories will most probably fix all kinds of scratch disk issues on your Mac. But if it still doesn’t work let’s discuss other solutions!

2. Delete Photoshop Temp Files on your Mac

If the in-built solution on Photoshop doesn’t do the job for you, let’s hunt down the culprits manually. Look for files on your Mac that begin with “pst” extension and then a string of numbers followed by the file extension “.tmp”.

To make sure your scratch disk is empty, search for “Photoshop Temp” on your Mac and look within your entire Mac’s hard drive. Mac will take a couple of minutes to list down all temp files on Photoshop. Wait for a while until the entire list pops up on screen and then safely delete each and every temporary file from your Mac.

3. Optimize Disk Space

Once in a while it is advisable that you review the drive contents on your Mac. In this way, you can get rid of unneeded files and data and save a few extra chunks of storage space on your device. Head on to Apple Menu > About This Mac > Storage tab.

Storage disc for mac

In the storage graph, you’ll see a “Manage” button. Tap on this option to optimize storage space on your Mac. Make the most of these Mac tools and save some additional storage space on your device. This is one of the best Mac optimizing techniques.

4. Change Your Scratch Disk

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If you’re tired of regularly optimizing storage space on your Mac and if still, the same scratch disk issues persist on your device, it may be a great idea to change your scratch disk to another drive. This will surely help you overcome the “Photoshop scratch disk full” error on Mac.

To change your scratch disk on Photoshop, follow these quick steps:

  • Launch Photoshop on Mac and tap the “Preferences” option on the menu.
  • Select “Scratch Disk”.
  • Check the box of your respective scratch drive name to select or remove a drive as the scratch disk.
  • Tap on OK to save changes.

5. Smart Mac Care

Last but not least, you can also take the help of a Mac utility tool for fixing the “Scratch Disks are full” error on Mac. Smart Mac Care is an all-round solution that allows you to get rid of junk files, malware infections in just one click to optimize your system’s performance.

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With Smart Mac Care, you can recover chunks of storage space on your device by removing unnecessary files and junk data. As the Scratch Disk full error on Mac is a storage-related error, using the Smart Mac Care cleaning tool for your Mac can prove out to be the right choice. Smart Mac Care can instantly free up junk files, redundant data stored on your Mac while keeping it secure from malware infections as well.

Once you’ve followed these steps, make sure you restart Photoshop application and then get to work.

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So folks here were the 5 most simple and useful solutions to fix “Scratch disks are full” error on Mac. We hope these solutions will resolve all your queries related to scratch disk on Mac. Next time when you plan on starting something new on Photoshop, make sure you follow all these steps for a smooth experience!

These five ways can help you get rid of the Scratch Disk Full error. However, using Smart Mac Care would also help you get rid of any possible errors that may hamper your Mac’s performance and ultimately avoid system performance. Smart Mac Care would ease your process of not only solving “Scratch Disk Full” error but would also help you get rid of all the halts on your Mac’s performance without getting into their complicacy.

Download Smart Mac Care and boost up your Mac for best performance.

Storage Disk For Mac


How Do I Empty the Scratch Disk in Photoshop?

Head on to Photoshop> Preferences> Performance. Now select the checkbox right next to the scratch disk you need to delete. Scratch disk is more like a temporary memory, so the moment you will terminate the application, the scratch disk will be emptied.

Can’t open Photoshop because scratch disks are full?

So, if you’re unable to launch Photoshop on your Mac because of the “scratch disk is full error, here’s what you need to do. Hold down the Command + Option key combination on Mac while launching the app.

What is a Scratch Disk in Photoshop?

A Scratch disk is more like a sort of temporary storage that is used for storing important elements related to your current project. The Scratch Disk only comes in use when the app is running and the moment you quit the application, the scratch disk is emptied.

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Let us know in the comments section which one among the above steps helped you remove the Scratch Disk Full error on Mac while using Photoshop.

Mac Disk Repair

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Disk Utility User Guide

Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up. Disk Utility can’t detect or repair all problems that a disk may have.

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If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.

Storage Disks For Mac

  1. In the Disk Utility app on your Mac, choose View > Show All Devices.

    Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).

  2. In the sidebar, select a disk or volume, then click the First Aid button .

    If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.

  3. Click Run, then click Continue.

    If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.

    • If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.

      • If you can replace a file or re-create it, delete it.

      • If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.

    • If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.

If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.

If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.

See alsoErase and reformat a storage device in Disk Utility on MacAdd, delete, or erase APFS volumes in Disk Utility on MacPartition a physical disk in Disk Utility on Mac