word not working. i have the product key

Redeem the product key with your Microsoft account first, then install Microsoft 365 from that same account and sign in to Word to activate it.

Redeem and install Microsoft 365 on Windows

1. Go to https://www.office.com/setup.
2. Sign in with your Microsoft account, or create one.
3. Enter the 25-character product key without hyphens if prompted.
4. Complete the redemption prompts. This permanently associates the purchase with that Microsoft account, so remember which account you used. ^1^
5. Go to https://m365.cloud.microsoft/apps and sign in with the same account.
6. Select Install apps → Microsoft 365 apps or Install.
7. Open the downloaded installer and select Yes if Windows asks permission.
8. Wait for “You’re all set! Office is installed now,” then select Close.
9. Open Start, search for Word, and open it. Accept the license agreement and sign in with the same Microsoft account if requested. ^2^

Do not post or send the product key here.

If the key has already been used

That normally means it was previously redeemed. Do not keep entering it. Sign in at https://account.microsoft.com/services/office/install with the account originally used to redeem it, and install from there. ^1^

If the message says “product key is not valid,” Microsoft states that the key has been blocked. Contact the seller and request a replacement or refund. ^3^

Contact a live Microsoft agent

Microsoft’s telephone numbers vary by country or region, so there is no single worldwide live-agent number. Use the official support page to obtain the appropriate option for your location: ^4^

1. Open the support page above and sign in.
2. Under Microsoft technical support, select Get help.
3. Enter: Install and activate Microsoft 365 using a product key.
4. Select Contact Support if it appears.
5. Choose Microsoft 365 and Office, then the installation or activation category.
6. Select Chat or Request a call back, depending on what is available in your region and at that time.

Support representatives cannot request or change your Microsoft account password. Never give anyone remote access, payment, or the full product key unless the interaction was started through the official Microsoft Support page.

References

1. Where to enter your Office product key | Microsoft Support
2. [Need help?](https://support.microsoft.com/office/lifecycle/officeinstall/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac)
3. "Product key is not valid" error when activating Office | Microsoft Support
4. Contact Microsoft customer support | Microsoft Support