Microsoft Office 365 Install With Product Key May 2026

with your Microsoft account (Outlook, Hotmail, or Live). If you don't have one, create a new account. Enter your 25-character product key without hyphens. Select your Country/Region and Language , then click Next .

After redemption, you will be redirected to your Microsoft account dashboard. Navigate to the Services & Subscriptions page. Locate your Microsoft 365 product and select . Microsoft Office 365 Install With Product Key

: Open the downloaded .exe file. Select Yes when the User Account Control prompt appears. The installer will run in the background; stay online until it finishes. with your Microsoft account (Outlook, Hotmail, or Live)

You do not need to enter the product key into the apps themselves. Activation happens via your login. Open any Office app (like Word or Excel). Select your Country/Region and Language , then click Next

Before downloading the software, you must associate the 25-character key with your Microsoft account. Go to office.com.

In the window, enter the email and password you used in Step 1.

: If you see this message, the key was likely already redeemed. Check your Services & Subscriptions page to see if the product is already listed.