Activation Problems

Fix Microsoft 365 Paid but Word and Excel Cannot Sign In

Maira Mehtab Sep 22, 2026 868 views

Question details

The user has paid for a Microsoft 365 subscription but continues to experience sign-in and activation errors when trying to use Word and Excel.

Product: Microsoft 365
Device & OS: not provided
Scenario: Activating and signing into Office applications after purchasing a Microsoft 365 subscription.
Observed behavior: Word and Excel display sign-in or activation errors despite the user having successfully paid for the Microsoft 365 subscription.

Before you start

Ensure you know the exact email address and password used to purchase your Microsoft 365 subscription, and verify that your internet connection is stable.

Solution 1Recommended

Verify Subscription and Reinstall Office

Confirm your subscription status online and perform a clean installation to clear activation bugs caused by older versions.

Often, an outdated Office installation remains on the computer and conflicts with your new Microsoft 365 license. Verifying your account and doing a fresh install can resolve this.

Check Microsoft Account

Go to account.microsoft.com/services in your web browser and sign in with the email address used to purchase the subscription.

Confirm Subscription

Verify that your Microsoft 365 subscription is listed and active on the services page.

Uninstall Existing Office

Open your computer's Control Panel or Settings, navigate to Apps, find your current Microsoft Office installation, and select Uninstall.

Reinstall from Account

Return to the Microsoft services page and click the Install button to download and install the correct, newly licensed version of Office.

Solution 2

Remove Embedded Work or School Accounts

An outdated or conflicting work account saved on your device can block personal Microsoft 365 activation.

Free Microsoft Office alternative

Avoid Activation Hassles with WPS Office

If Microsoft 365 sign-in and activation issues persist, consider switching to WPS Office. It is a free, lightweight alternative that requires no complex subscription activations while providing a familiar interface and full compatibility with your existing Word and Excel files.

1. Download the Installer: Visit the official WPS Office website and download the free installation package for your operating system.
2. Install WPS Office: Run the installer and follow the quick on-screen instructions to set up the software.
3. Open Your Files: Launch WPS Writer or Spreadsheet and instantly open your existing Word and Excel files without needing to activate a paid subscription.

Free to use without complex subscription activation or sign-in blocks.Fully compatible with Microsoft Office formats including DOCX, XLSX, and PPTX.Lightweight installation that does not conflict with older system accounts.Familiar user interface ensuring a seamless migration from Microsoft Office.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft 365 say unlicensed product after paying?

This usually happens if you are signed in with the wrong Microsoft account, or if an older version of Office is still installed on your device and conflicting with the new license.

How do I find which account is tied to my Microsoft 365 subscription?

You can check by logging into account.microsoft.com/services. Try signing in with your various email addresses until you find the account that lists your active Microsoft 365 subscription.

Can an old work account prevent me from signing into Microsoft 365?

Yes, outdated work or school accounts embedded in your Windows 'Access work or school' settings can cause activation conflicts, preventing your personal subscription from signing in properly.

Do I need to uninstall my old Office before installing Microsoft 365?

It is highly recommended to uninstall any previous versions of Office from your computer to avoid license conflicts and sign-in errors with your new Microsoft 365 subscription.

Installation & Activation