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License & Subscription Issues

Fix Microsoft Account Says Storage Is Full When OneDrive Is Empty

WPS Content ManagerWPS Content Manager Oct 10, 2026 869 views

Question details

The user receives a storage full notification on their Microsoft account despite their OneDrive appearing empty, and deleting files does not seem to resolve the issue.

How to Fix Microsoft Account Showing Storage Full When OneDrive is Empty
Product
Microsoft OneDrive and Outlook
Device & OS
not provided
Scenario
Trying to manage cloud storage quotas or save new files when the account incorrectly reports that the storage limit is exceeded.
Observed behavior
The storage indicator continues to show that the server storage quota is exceeded, even after deleting OneDrive files and email attachments, occasionally showing conflicting totals across Microsoft 365.
Before you start

Before troubleshooting, ensure you are logged into the correct Microsoft account across all your devices, as storage limits and subscription quotas are tied to specific individual accounts.

Solution 1Recommended

Check and Clear Hidden Storage in Outlook on the Web

Microsoft accounts share storage across OneDrive and Outlook. Large email attachments in Outlook can fill up your Microsoft storage even if your OneDrive files are completely empty.

Microsoft recently updated its storage policy, meaning Outlook email attachments now count against your overall Microsoft cloud storage quota. Simply emptying standard OneDrive folders may not be enough to free up space.

1
Access Outlook Web Settings

Log in to Outlook on the web, click the Settings (gear) icon in the top right corner, and navigate to 'View all Outlook settings'.

2
Navigate to Storage Options

Select 'General' from the left sidebar, and then click on 'Storage'.

3
Review Storage Breakdown

Check both 'Microsoft storage' (which includes OneDrive and Outlook attachments) and 'Email storage' to identify what is taking up space.

4
Delete Unnecessary Data

Delete large email messages with attachments, empty your 'Deleted Items' folder, and clear the recoverable deleted items area.

Check and Clear Hidden Storage in Outlook on the Web
Sync Delay: Allow up to 24 hours for Microsoft's servers to update your storage quota status after deleting large amounts of data.
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Frequently Asked Questions

Why does Microsoft say my storage is full when I have 1TB from my subscription?

Sometimes, your Microsoft 365 subscription renewal takes time to process on the server side. Alternatively, you might be exceeding the 50GB email storage limit rather than the 1TB OneDrive limit. Check your subscription status online to confirm.

How long does it take for Microsoft storage to update after deleting files?

It can take up to 24 hours for Microsoft servers to fully process the deleted files, empty the hidden trash bins, and reflect the updated storage quota on your account dashboard.

Are Outlook attachments counted against my OneDrive storage?

Yes, under Microsoft's recent policy updates, Outlook email attachments now share the same overall Microsoft cloud storage quota as your OneDrive files.