How to Fix an Unauthorized Microsoft 365 or OneDrive Account
Question details
The user needs to reactivate a Microsoft 365 or OneDrive account that has been flagged as unauthorized and scheduled for deactivation.
- Product
- Microsoft 365 and OneDrive
- Device & OS
- not provided
- Scenario
- Attempting to access, upload, or sync files to OneDrive or SharePoint for Business.
- Observed behavior
- The account displays a deactivation message stating the Office 365 account is unauthorized, blocks file uploads, and warns of impending closure and data loss.
Immediately download and back up all accessible files from your OneDrive or SharePoint to a local hard drive, as unauthorized accounts are at high risk of permanent data deletion by Microsoft.
Verify Subscription Status and Contact Administrator
Check if your account has a valid official license or if it was provided by an unauthorized third-party reseller.
Many users encounter this error when purchasing cheap, high-capacity OneDrive accounts (like 5TB plans) from third-party apps or websites. Microsoft regularly sweeps and deactivates these unauthorized tenant accounts.
Go to myaccount.microsoft.com in your web browser and log in with your affected email address.
Navigate to the 'Subscriptions' section on the left sidebar to see if an active SharePoint or OneDrive for Business plan is still assigned to your account.
If this is a legitimate school or workplace account, contact your IT administrator to request a valid license. If you bought this from a third-party reseller, you must contact the seller, though recovery is highly unlikely if Microsoft flagged the tenant.
Escalate Official Accounts to Microsoft Support
If you are certain your subscription is directly from Microsoft or an authorized partner, contact billing support to clear the error.
Switch to WPS Office for a Free and Reliable Experience
If your Microsoft 365 account has been deactivated and you are locked out of your software, WPS Office provides a powerful, entirely free alternative to create, edit, and view documents without worrying about unexpected subscription cancellations.
- 1. Download WPS Office: Visit the official WPS website and download the free installer for your operating system.
- 2. Install the Application: Run the setup file and follow the on-screen instructions to install the suite.
- 3. Open Your Backed-Up Files: Launch WPS Office and seamlessly open the Office documents you salvaged from your deactivated OneDrive account.
Frequently Asked Questions
Why did my OneDrive account get flagged as unauthorized?
Microsoft routinely audits enterprise and educational tenants. If you purchased a cheap lifetime or high-capacity account from a third-party seller instead of Microsoft directly, it likely violates their terms of service and was flagged during an audit.
Can I recover my files after the deactivation date?
Once the account is closed on the stated UTC date, all files stored in that unauthorized OneDrive or SharePoint account are permanently deleted from Microsoft's servers and cannot be recovered.
How do I back up my files before the account is closed?
Sign in to your OneDrive or SharePoint account via a web browser, select all your important files and folders, and click the 'Download' button to save them to your local hard drive or another legitimate cloud storage service.
Will I lose access to Microsoft Office desktop apps too?
Yes, if your Microsoft 365 account is deactivated, the license tied to your desktop Office applications (like Word and Excel) will also expire, reducing them to view-only mode or prompting you to purchase a new subscription.
