Storage is empty but says it's full?

Question

Whenever I open File Explorer, there is an error at the top that says my storage is full. When I click on the "Error", it says there's a "1 sync error". I click on it, and it says "There's not enough Cloud storage". I know this is not true because when I go to my PC, in Files, it says I have 65 GB of free space. When I open my OneDrive, it says that I've used less than .1 of storage space. So why aren't my Files being backed up if my Drive claims that I have space? I've emptied my recycling bin, and still no change. Wondering what's going on and if anyone has any insight as to what the issue is.

Answer 1

Hi, I'm John! I will help you with this.

After purchasing additional storage (or freeing space), it can take up to 24 to 48 hours for everything to fully update across your account. I’d recommend waiting that time and then trying again to check emails or try to send.

If the update is still pending after 24 hours, you can try unlinking and relinking your OneDrive account, or resetting it. "Unlink and re-link OneDrive" https://support.microsoft.com/office/unlink-and-re-link-onedrive-3c4680bf-cc36-4204-9ca5-e7b24cdd23ea

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I really hope this information is helpful! Let me know if you have any further questions or concerns.

Regards,

John J.D.

Answer 2

The message refers to cloud storage (Microsoft unified storage/OneDrive + Outlook.com), not local disk space on the PC. Free space on the PC drive does not affect this warning.

From the message "There's not enough Cloud storage" and the sync error, the account has exceeded its Microsoft cloud storage quota, even if OneDrive alone appears mostly empty. Microsoft now treats storage as unified across services, so:

• If Outlook.com email or OneDrive is full, email and file sync/backup can stop.
• When Microsoft unified storage is full, new files cannot be uploaded or synced, and existing files become read-only until storage is freed or upgraded.

To resolve:

1. Check overall Microsoft storage usage (not just local disk):
   • Use the Manage your OneDrive storage / Storage used view to see what is taking space and to empty the OneDrive Recycle Bin.
   • Also check Outlook.com mailbox storage; if the mailbox is full, it contributes to the unified storage limit and can block sync.
2. Free up cloud storage:
   • Delete large or unneeded files and folders from OneDrive, then empty the OneDrive Recycle Bin (items in the Recycle Bin still count toward the quota).
   • Clean up Outlook.com (large emails, attachments, Junk, Deleted Items) to get back under the unified quota.
3. If more space is needed:
   • Buy additional Microsoft storage or a Microsoft 365 subscription, or add extra storage to an existing Microsoft 365 Personal or Family subscription.
   • After purchasing additional storage, it can take up to 24 hours for the new quota to show.

Once the account is back under the cloud storage quota, the OneDrive sync error should clear and files will start backing up again.

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References:

• My OneDrive says it's full
• I'm getting a "Disk full" message in OneDrive
• Microsoft storage FAQs
• Manage your OneDrive for work or school storage