License & Subscription Issues

Fix OneDrive Storage Increasing When Deleting Outlook Emails

Elise Williams Oct 10, 2026 870 views

Question details

The user is unable to receive new emails because their account is over the 5 GB limit, and permanently deleting Hotmail messages appears to increase OneDrive storage usage instead of reducing it.

How to Fix OneDrive Storage Increasing When Deleting Emails

Product: Microsoft Outlook and OneDrive
Device & OS: not provided
Scenario: Attempting to free up Microsoft account storage by deleting old emails to restore incoming email delivery.
Observed behavior: Deleting emails paradoxically appears to increase OneDrive storage, leaving the account over the 5 GB quota and blocking new messages.

Before you start

Ensure you have your Microsoft account credentials ready and log in via a web browser to access both your Outlook and OneDrive settings.

Solution 1Recommended

Clear Space via OneDrive and Empty the Recycle Bin

Since Microsoft storage is shared, freeing up space directly in OneDrive and its Recycle Bin is the most effective way to restore your email quota.

Microsoft accounts share a single 5 GB cloud storage quota across Outlook attachments and OneDrive files. Deleting emails might not immediately reflect in storage savings if attachments are still stored or if the sync is delayed.

Log into OneDrive

Open your web browser and navigate to OneDrive.com, logging in with your Microsoft account credentials.

Delete Unnecessary Files

Review your folders and delete any large files or documents that you no longer need.

Empty the Recycle Bin

Click on 'Recycle bin' in the left-hand navigation pane, then select 'Empty recycle bin' to permanently free up the storage space.

Solution 2

Check Outlook Storage Settings and Allow Sync Time

Verify your exact storage breakdown in Outlook and allow the server time to update your metrics after mass deletions.

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Frequently Asked Questions

Why does my storage still say full after deleting emails?

Microsoft's storage metrics can take up to 24 hours to sync across their servers. Additionally, deleted emails go to the Deleted Items or Recycle Bin folder, which still counts toward your overall quota until permanently emptied.

Are OneDrive and Outlook storage shared?

Yes, free Microsoft accounts come with a shared 5 GB cloud storage limit. This quota includes both your OneDrive files and your Outlook email attachments.

How do I check my detailed Outlook storage usage?

Log in to Outlook.com, click the gear icon for Settings, select 'General' from the menu, and then click 'Storage' to view a detailed breakdown of your usage.

Login & Account Issues