Fix common Office activation and Unlicensed Product errors with practical checks for your Microsoft account, licence and Office installation.
Are you seeing an “Unlicensed Product”, “Product Deactivated” or Office activation error when opening Word, Excel, Outlook or another Microsoft Office app?
These messages usually mean Office cannot verify the licence associated with your installation. The cause may be an incorrect Microsoft account, an expired subscription, an installation problem or an activation issue.
Follow the steps below to check your licence and troubleshoot the problem before purchasing Office again.
Before you start: Check which version of Office you have
Microsoft offers two main types of Office licence:
- Microsoft 365: A subscription that provides Office apps and other features depending on your plan.
- Microsoft Office 2024: A one-time purchase for a compatible computer, with the apps and features included in that edition.
Office 2016 and Office 2019 reached the end of support on 14 October 2025. Office 2021 reached the end of support on 13 October 2026. This means these versions no longer receive standard support and security updates, but it does not automatically mean that an existing licence can no longer activate.
Visit How do I tell what Microsoft Office version I have?
Check your Office licence on Windows
- Open Word or Excel.
- Select File.
- Select Account or Office Account.
- Look under Product Information.
- Check the product name and any activation or licence messages displayed.
Check your Office licence on a Mac
- Open Word.
- Select Word from the menu bar.
- Select About Microsoft Word to check the installed version.
- To check activation, open Word’s account or licence information and confirm which account is signed in.
If you own Office 2024 but the app is asking you to subscribe to Microsoft 365, don’t purchase another licence immediately. First check that you’re signed in with the account associated with your Office purchase. This is a well known issues and will need you to deactivate any old licences, remove existing word versions and then reinstall from your Microsoft Account.
Visit: Activation problem on Mac for Microsoft Office 2024 single use
Fix 1 — Check your Microsoft account and licence
This is the best place to start. Office must be associated with a valid licence, and you need to use the correct account to activate it.
- Visit Microsoft account — Services and subscriptions.
- Sign in with the Microsoft account you used when purchasing or registering Office.
- Check whether your Office purchase or Microsoft 365 subscription is listed.
- If you have more than one Microsoft account, check the others too.
- Open Word again and sign in using the account associated with your licence.
For Microsoft 365, check that the subscription is still active. For Office 2024 or another one-time purchase, check that the correct product is associated with your account.
What if your licence is listed but Office still won’t activate?
Continue to Fix 2. The installed Office app may need updating, repairing or correcting.
Fix 2 — Update Microsoft Office
Office updates can sometimes resolve activation or installation problems. Updating Windows alone does not necessarily update Office.
On Windows 10 or Windows 11
- Open Word or Excel.
- Select File → Account.
- Under Product Information, select Update Options.
- Select Update Now.
- Follow the prompts and allow the updates to finish.
- Close and reopen Office, then check whether the activation message has disappeared.
If you cannot find Update Options, the available controls may differ depending on how Office was installed or managed.
On a Mac
- Open Word or another Office app.
- Select Help → Check for Updates, if available.
- Follow the instructions in Microsoft AutoUpdate.
- Reopen Office and check the activation status.
If the problem remains, move to Fix 3.
Fix 3 — Download Office from your Microsoft account
If the wrong version of Office is installed, or the installation is damaged, reinstalling the version associated with your licence may help.
Before uninstalling anything, confirm that your Office product is listed in your Microsoft account. This helps avoid removing a working installation without knowing how to restore it.
- Visit Microsoft account — Services and subscriptions.
- Sign in with the account associated with your Office purchase or subscription.
- Locate your Office product or Microsoft 365 subscription.
- Select the available install option.
- Follow Microsoft’s instructions to download and install the correct version.
- Open Word and sign in if prompted.
The exact buttons and labels vary by product. Microsoft also provides instructions for downloading and reinstalling Office.
This will take you to another screen called “My Account” … select “Install Office”
After installation, open Word or Excel and check whether Office activates.
Fix 4 — Repair Office on Windows
If Office is installed but still displays an activation error, try repairing the installation.
These instructions apply to Windows. Mac users should follow Microsoft’s separate Office for Mac activation troubleshooting guide.
Run a Quick Repair
- Close all Office applications.
- Open Settings in Windows.
- Select Apps → Installed apps. The wording may vary slightly by Windows version.
- Find your Microsoft Office or Microsoft 365 installation.
- Select the three-dot menu, if shown, and choose Modify.
- Approve the Windows permission prompt if one appears.
- Select Quick Repair and follow the instructions.
- When it finishes, open Word and check the activation status.
Try an Online Repair if necessary
If Quick Repair does not help, repeat the process and choose Online Repair, if available.
Online Repair may require an internet connection and can take longer. Save your work and close Office apps before starting.
If Office remains unlicensed, consult Microsoft’s official activation and Unlicensed Product troubleshooting guide.
Fix 5 — Check whether you need a different Office licence
If none of the previous steps works, check your licence carefully before buying anything.
You may need to purchase a licence if:
- Your Microsoft 365 subscription has expired and you want to continue using its paid features.
- You do not own a licence for the version of Office installed.
- Your existing licence does not include the app you are trying to use.
- You want to move to a newer, supported version of Office.
However, an activation error does not necessarily mean that you need to buy Office again. First confirm your existing purchase and account details.
Microsoft 365 or Office 2024?
Microsoft 365 is subscription-based. Office 2024 is generally purchased with a one-time licence for the included apps on a compatible computer.
Read our guide to Office versions and upgrade options before deciding which option suits your needs.
Frequently asked questions
Why does Office suddenly say “Unlicensed Product”?
Office may be unable to verify your licence because you are signed in with the wrong account, your subscription has expired, the installation has a problem or an activation issue has occurred.
Can I reinstall Office without buying it again?
Often, yes. If you already own a valid Office licence associated with your Microsoft account, you can usually download the product again from your account. The exact process depends on your version and licence.
Why does Office 2024 ask me to activate Microsoft 365?
Check that the Office app is signed in with the Microsoft account associated with your Office 2024 purchase. Also confirm that the installed edition matches the licence you own. If the purchase is listed but activation still fails, follow Microsoft’s troubleshooting steps before buying another product.
Does the end of support mean Office can no longer be activated?
No. End of support means that the product no longer receives standard support and security updates. Activation and reinstallation depend on the product, licence and account.
Need help fixing Office?
If Office still won’t activate, or you’re unsure which version or licence you own, iTech WA can help you work through the problem.
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