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Office 365 Product Key Activation Guide

Activating your Office 365 product key is a straightforward process that ensures you have access to all the powerful features of Microsoft’s productivity suite. Whether you’ve purchased a new key or are renewing an existing subscription, this guide will walk you through the steps to get your Office 365 up and running.

What You’ll Need Before Starting

Before beginning the activation process, make sure you have the following:

• A valid Office 365 product key (25 characters)
• A Microsoft account
• Internet connection
• Compatible device (PC, Mac, or mobile)

Step-by-Step Activation Process

Step 1: Sign In to Your Microsoft Account

Visit office.com/setup and sign in with your Microsoft account credentials. If you don’t have an account, you’ll need to create one.

Step 2: Enter Your Product Key

Once logged in, you’ll be prompted to enter your 25-character Office 365 product key. Type it carefully without spaces or dashes, then click “Next.”

Step 3: Verify Your Subscription

Microsoft will verify your product key and display your subscription details. Confirm that the information matches your purchase.

Step 4: Download and Install Office 365

After verification, you’ll be directed to download the Office 365 installer. Choose your preferred language and version (32-bit or 64-bit), then run the installer.

Step 5: Activate Your Installation

Once installed, open any Office application (like Word or Excel). You may be asked to sign in again with your Microsoft account to complete activation.

Troubleshooting Common Issues

Invalid Product Key

If you receive an “invalid key” message, double-check that you’ve entered all 25 characters correctly. Office 365 keys are case-insensitive but must be entered exactly as provided.

Already Used Key

If your key shows as already used, contact Microsoft Support with your purchase receipt for assistance.

Installation Problems

For installation issues, try downloading the Office Uninstall Support Tool from Microsoft’s website to remove any previous versions before reinstalling.

Managing Your Office 365 Subscription

After activation, you can manage your subscription at account.microsoft.com/services. Here you can:

• Check your subscription status
• Renew or change your plan
• Install Office on additional devices
• Update payment information

Remember that your Office 365 product key is typically valid for one year, after which you’ll need to renew your subscription to continue receiving updates and services.