Look at your screen's lower-right end and check the set date. If your subscription is going to expire in a specific month of the year, which is yet to come, but the date you set on your device goes past the day when the subscription will actually expire, you may encounter this error.

The 'Product Activation Failed' error can also be caused by an incorrectly set date on your device. Then, sign in again using the account that has an active subscription. If you see a different account there, click on Sign out. Under User Information, you can find the account information.Navigate to the File tab and select Account on the left sidebar.Open the Office application where you are experiencing the error.To ensure that's not the case, follow the below steps: If you share your computer with others, they might have logged in to their accounts that do not have active subscriptions. You must use the same Microsoft account you used to buy the subscription to access all features of the Office apps. Ensure You Are Logged Into the Correct Account However, if you have not received any email and the subscription is still active, you might be logged in to Microsoft apps with a different account.ĥ. If the subscription has expired, you will have to renew it to fix the error. If you find an email regarding subscription expiration, log in to your Microsoft 365 account to confirm.

Ensure Your Subscription Hasn't ExpiredĬheck the email account you used to purchase the subscription to see if you have recently received an email from Microsoft. However, if you are already subscribed to Microsoft 365 and Windows is registered, ensure it hasn't expired. So, if you're using a pirated copy of Windows, consider buying a license.

If Microsoft detects that you are using a copy of Windows that is not legitimate, it may block your access to certain apps and features.Ĭonsequently, your legitimate Office subscription may not work on illegally activated Windows. Just as you should avoid activating Office apps through unauthorized means, you shouldn't use unauthorized gateways to activate Windows.

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