License & Subscription Issues

Fix Microsoft 365 Asking to Buy Again on a New Computer

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is being prompted to purchase Microsoft 365 again when opening Office apps on a newly replaced computer, despite already having an active subscription.

Product: Microsoft 365
Device & OS: not provided
Scenario: Setting up Office applications on a new computer after a device replacement.
Observed behavior: Word and other Office applications request another purchase and fail to recognize the existing active subscription.

Before you start

Ensure you have the exact login credentials for the Microsoft account you originally used to purchase your Microsoft 365 subscription. Do not purchase a new subscription until you have verified your existing account status.

Solution 1Recommended

Verify Subscription Status on Your Microsoft Account

Check your Microsoft account online to ensure your subscription is active and linked to the correct email address before trying to activate the desktop apps.

Often, new computers come with pre-installed trial versions of Microsoft 365. To activate your existing license, you must confirm that the account you are trying to use actually holds the active subscription.

Navigate to the Microsoft Services page

Open a web browser on your new computer and go to https://account.microsoft.com/services.

Sign in to your account

Log in using the Microsoft account email and password associated with your original purchase. If you bought it through a third party, use the account you redeemed the product key with.

Check subscription details

Locate the 'Services & subscriptions' section and verify that your Microsoft 365 subscription is listed, active, and not expired.

Third-Party Purchases: If you purchased your subscription through a third-party retailer (like Amazon or Best Buy), ensure you have already redeemed the product key to your Microsoft account before checking this page.

Solution 2

Sign in and Switch Accounts within Office Apps

Ensure the Office application installed on your new computer is signed into the correct Microsoft account to fetch the license.

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1. Download the Installer: Visit the official WPS Office website and download the free installer for your operating system.
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Frequently Asked Questions

Why doesn't my new computer recognize my Microsoft 365 subscription?

This usually happens if you are signed into the pre-installed Office apps with a different Microsoft account than the one used to purchase the subscription. It can also occur if the pre-installed version is a different tier (e.g., Office 2021 instead of Microsoft 365).

Do I need to deactivate Office on my old computer before using it on a new one?

For Microsoft 365 Personal or Family, you do not need to manually deactivate it; you can stay signed in on up to 5 devices simultaneously. However, if you hit the device limit, you can sign out of old devices remotely via the Microsoft account dashboard.

How do I activate Office if I bought it from a third-party retailer?

If you purchased from a third party, you first need to redeem the 25-character product key at setup.office.com using your Microsoft account. Once linked, you can log into the Office apps on your new computer using that same Microsoft account to activate the software.

Login & Account Issues