User Case: Can’t Sync for Not Enough Space

 

I'm getting notifications that my hard drive is full. My Mac Mini is what I use but the hard drive is completely empty. Now, Word documents saved in Dropbox are not opening for me. I’ve tried several suggestions but the syncing isn’t working still and says there is not enough space to do the Smart Sync.

- Question from dropboxforum.com

Why Dropbox Can’t Sync Not Enough Disk Space?

Dropbox Can't Sync Not Enough Free Disk Space
Dropbox Can't Sync Not Enough Free Disk Space

At the beginning of this post, let’s find out the cause of the “Not enough disk space” error when syncing. There are 9 common culprits:

► Dropbox is attempting to download every file to the local. Syncing fails if the size of your Dropbox folder exceeds the amount of disk space you have available.

► Dropbox downloads files as part of its Smart Sync temporary storage feature. When syncing or accessing files that are marked as "Online Only", Dropbox may temporarily download them.

► Selective Sync re-enables large folders. Large folders may exceed your local storage if you recently enabled syncing for them again.

► Dropbox accumulates a lot of cache. Over time, Dropbox may accumulate a sizable cache folder in which it keeps deleted and altered files.

► Mismanage the System storage. Dropbox cannot use your disk even though it has sufficient space due to OS limitations (such as reserved storage).

► There are conflicts among third-party apps. Dropbox's syncing functionality may be hampered by antivirus software, backup programs, or cloud storage apps.

► Restrictions add to the File system. Some file systems, like FAT32, have size restrictions that make it difficult for big files to sync properly.

► Dropbox hard drive location changes. Sync issues may arise if Dropbox is set up on an external drive that is running low on space.

► Quota mismatches. Due to quota restrictions, syncing may still not work even if your local disk has space but your Dropbox cloud storage is full.

Fix Dropbox Can’t Sync Not Enough Disk Space

Can't Sync Not Enough Free Disk Space Dropbox
Can't Sync Not Enough Free Disk Space Dropbox

After finding out the causes of your issue, you can try to fix it with the 8 quick solutions.

1. Free Up Local Disk Space

The first consideration is to clean up your disk space if it is really full. There are 3 common ways to free up space.

  • Delete unnecessary files or move them to an external drive.
  • Empty the Recycle Bin (Windows) or Trash (Mac).
  • Uninstall unused apps.

2. Use Selective Sync

Dropbox Selective Sync is a feature that allows you to choose which folders to sync to your computer while keeping the rest stored only in the cloud. To access Selective Sync:

Step 1. Go to Dropbox settings > Preferences > Sync tab.

Step 2. Click Selective Sync and uncheck large folders to prevent them from syncing.

Choose Selective Sync
Choose Selective Sync

Step 3. This keeps them online without taking up local storage.

3. Enable Smart Sync (For Dropbox Plus, Family, or Business Users)

Dropbox Smart Sync is a feature that lets you access all your Dropbox files from your computer without taking up local storage. It allows you to mark files as Online-Only (stored in the cloud) or Local (available offline).

Step 1. Right-click on large files/folders in the Dropbox folder.

Step 2. Select Smart Sync > Online Only to free up local space.

Select Online-only in Smart Sync
Select Online-only in Smart Sync

4. Clear Dropbox Cache

Step 1. Navigate to C:\Users\YourName\Dropbox\.dropbox.cache (Windows) or ~/Dropbox/.dropbox.cache (Mac).

Step 2. Delete all files inside the .dropbox.cache folder.

5. Change the Location of Your Dropbox Folder

If you save Dropbox files in a drive that is full of files, you can move Dropbox to another drive.

To move Dropbox to a drive with more space: Go to Dropbox Preferences > Sync > Move and choose a new location.

Change Dropbox Location
Change Dropbox Location

6. Check File System and Drive Format

Choice 1: Ensure your drive isn’t formatted as FAT32, which has a 4GB file limit.

Choice 2: Convert it to NTFS (Windows) or APFS (Mac) if needed.

7. Restart Dropbox and Reboot Your Computer

Choice 1: Quit Dropbox and restart it.

Choice 2: If that doesn’t work, restart your computer to refresh system processes.

8. Reinstall Dropbox

If the above fixes cannot resolve your problem, you can uninstall Dropbox, restart your computer, and reinstall the latest version from the Dropbox website.

How to Easily Move Files from Dropbox to Another Cloud

Moving files from Dropbox to another cloud can do you a favor when you need to free up space on Dropbox or use another cloud instead of Dropbox. However, downloading and uploading files is always a tiresome task especially when there are numbers of files to move. Don’t worry! Now you have an automatic way to execute the task: MultCloud Cloud Transfer.

MultCloud is a free cloud management service that offers multiple functions to move files, such as Cloud Transfer, Team Transfer, Cloud Sync, and Cloud Backup. Among the functions, Cloud Transfer is the most ideal one for moving files between clouds.

Rather than the simple transfer process, Cloud Transfer gives more customizable options. For example, you can let the task delete all the transferred files from the source cloud. Moreover, there is a “Filter” feature to help you batch-select the files you do not want to transfer with file extensions. What’s more, you can schedule the task when you need to start it frequently.

You can see an example of moving files from Dropbox to Google Drive by Cloud Transfer.

Step 1. Sign up for an account by clicking “Get started for free” on the MultCloud website.

Step 2. Click “Add Cloud” and the cloud logo to add Dropbox and Google Drive to MultCloud.

Add Google Drive and Dropbox
Add Google Drive and Dropbox

Step 3. Select “Cloud Transfer” in the left sidebar and choose Dropbox as the transfer source and Google Drive as the destination.

Transfer Dropbox to Google Drive
Transfer Dropbox to Google Drive

Step 4. Open “Options” to check the transfer settings and tap “Transfer Now” to start this task.

Cloud Transfer Options
Cloud Transfer Options

Note: MultCloud uses data traffic to transfer files between clouds so the task can run offline.

Conclusion

Now you have 8 fixes to address the “Dropbox can’t sync not enough disk space” error. If they cannot help, it is recommended to contact Dropbox Help and get more specific solutions from Dropbox professionals.

Furthermore, if you want to move files from Dropbox to another cloud or vice versa, you can choose MultCloud Cloud Transfer for an automatic transfer task without any downloading.

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