How to Fix “Upload: Failed to Write File to Disk” Error in WordPress

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Are you seeing the error message “Upload: Could not write file to disk” when uploading files in WordPress?

This common error can be very frustrating for beginners as it prevents you from uploading files to your WordPress website.

In this article, we will show you how to fix the “Upload: File could not be written to disk” message in WordPress.

Upload failed to write file to disk error in WordPress
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What causes the “File not written to disk” error in WordPress?
This WordPress error can occur for a number of reasons, but the most common reason is incorrect folder permissions.

Every file and folder on your website has a set of permissions . Your web server controls access to the files based on these permissions.

Incorrect permissions on a folder can prevent you from writing files on the server. This means that your web server cannot create or add new files in that folder.

When you try to upload images or other files through the WordPress list of hong kong cell phone number admin area , you receive one of the following error messages:


For this guide, we will use the free FTP client FileZilla . If you use a different FTP client, the interface may look a little different.

Once you are connected, you need to right- wp-contentclick on the folder and select “File Permissions”.


Next, you need to click on the “Apply to directories only” option and then click on the “OK” button to continue.

Your FTP client will now set the folder permissions to 755 and apply them to all subfolders within wp-content. This includes the uploads folder where all your images are stored.