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How to Fix the Microsoft Cloud Storage NaN% Error Message
Question details
The user is repeatedly receiving an invalid 'NaN%' cloud storage notification that standard troubleshooting does not resolve.
- Product
- Microsoft OneDrive
- Device & OS
- not provided
- Scenario
- Monitoring cloud storage capacity and reviewing automatic system notifications.
- Observed behavior
- A notification persistently displays 'NaN%' instead of the actual storage percentage, regardless of actual available space.
Log into your Microsoft account via a web browser to verify your actual storage usage and ensure you are not genuinely out of space.
Update Apps and Refresh Your Account Session
Because the NaN% message is a display bug, ensuring your software is up to date and forcing a session refresh can often clear it.
This error indicates that the application is failing to calculate the storage number correctly. Refreshing the local client data is the best first step to resolve display inconsistencies.
Open any Office application (like Word), navigate to File > Account, click on Update Options, and select Update Now.
On the same Account page, click the Sign Out button beneath your user profile information.
Restart your computer, open the Office application again, and sign back into your Microsoft account to reload your storage metrics.
Contact Microsoft Support
If the display glitch persists across devices, the issue requires intervention from Microsoft Support on the server side.
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Frequently Asked Questions
What does NaN% mean in my Microsoft storage notification?
'NaN' stands for 'Not a Number.' It is a common programming or calculation error indicating that the application failed to retrieve or properly render your actual storage usage percentage.
Will the NaN% display error affect or corrupt my saved files?
No. This is purely a superficial display bug in the notification system. Your uploaded files remain completely safe and accessible in your cloud drive.
Can I remove the error by purchasing a larger cloud storage plan?
You should not purchase more storage unless you have independently verified via the web browser that your current plan is full. Buying more space will generally not resolve this specific calculation glitch.
