Activation Problems

Fix Cached Credentials Expired Error in Microsoft Office

Maira Mehtab Sep 21, 2026 869 views

Question details

The user is unable to save, upload, or download Office files because the system incorrectly reports that their cached credentials have expired and the product is deactivated.

Product: Microsoft Office 365
Device & OS: not provided
Scenario: Attempting to sync or save document changes to the cloud while using a paid Microsoft 365 Personal subscription.
Observed behavior: The Office application blocks file saving and displays two error messages: "We cannot upload or download your changes because your cached credentials have expired" and "Product deactivated."

Before you start

Ensure you know the exact email address and password for the Microsoft account associated with your active Microsoft 365 subscription before proceeding.

Solution 1Recommended

Verify Subscription and Re-sign Into Office

Check your active subscription status online and ensure the correct account is signed into the Office desktop application to clear the activation mismatch.

Often, the Office installer may attempt to activate a different product version (such as a pre-installed trial) from the one you intended to use. Signing out and signing back in with the correct account refreshes your credentials.

Verify Your Subscription Online

Open your web browser, navigate to office.com/myaccount, and sign in. Check the 'Services & subscriptions' section to confirm your Microsoft 365 Personal subscription is active.

Check the Deactivated Product Details

Open the affected Office application (like Word or Excel) and look at the "Product deactivated" message to see exactly which product version is listed.

Sign Out of Office

Click on your profile picture or name in the top right corner of the Office app and select 'Sign out'. If prompted, confirm that you want to sign out.

Sign Back In

Restart the Office application, click 'Sign in', and enter the credentials for the Microsoft account tied to your active Microsoft 365 Personal subscription.

Account Mismatch: Make sure you are not accidentally signed into a school or work account if your subscription is for Microsoft 365 Personal.

Free Microsoft Office alternative

Try WPS Office for a Hassle-Free Document Experience

If Microsoft Office activation issues persist or you want to avoid recurring subscription costs and credential errors, switch to WPS Office. It is a free, lightweight, and highly compatible alternative that lets you create, edit, and save documents smoothly.

1. Download the Installer: Visit the official WPS Office website and click the free download button for your operating system.
2. Install WPS Office: Run the downloaded installation file and follow the simple on-screen instructions to set up the software.
3. Open Your Files: Launch WPS Office and open your existing Microsoft Word, Excel, or PowerPoint files directly to continue working seamlessly.

Free to use with no complex subscription requirements or credential expiration errors.Fully compatible with Microsoft Office formats including DOCX, XLSX, and PPTX.Lightweight installation with a familiar, easy-to-use interface for a seamless migration.Built-in cloud sync for easy file management without activation hassle.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Office say my cached credentials have expired?

This happens when the login token saved on your device becomes outdated, corrupted, or no longer matches your active subscription status on Microsoft's servers.

How do I clear cached credentials in Windows manually?

You can clear them by opening the Credential Manager from the Windows Control Panel, selecting 'Windows Credentials', and removing any entries that start with 'MicrosoftOffice'.

Can I still view documents if my Office product is deactivated?

Yes, you can typically view and print documents in read-only mode, but you will not be able to edit them or create new ones until the activation issue is resolved.

Will I lose my files if I sign out of Office to fix this?

No, your locally saved files remain completely safe. You only need to sign back in with the correct account to resume cloud syncing and editing capabilities.

Installation & Activation