The Ultimate Guide to Office 2021 Setup: Installation and Activation
The Ultimate Guide to Office 2021 Setup: Installation and Activation. Follow our easy step-by-step instructions for installing and activating Office 2021, whether through setup.office.com, downloading the ISO file directly, or activating through official methods.
1. Redeem Your Microsoft Office Product
Visit https://setup.office.com and select the 'Get Started' option.
- Sign in with your Microsoft account
- Redeem your product key
- Download your Office Software
*Note: If you need a straightforward installation, you can download the Office 2021 Professional Plus ISO file directly using the button below.


2. Quick Guide for setup.office.com
Once you click "Get Started," sign in with your Microsoft account and follow these steps:
- Enter your Office product key and click "Next."
- Select your preferred language and click "Redeem."
- Office will begin downloading. Once the download is complete, locate the setup file and open it to start the installation.
3. Activating your Office Software
Once the installation is complete, follow these simple steps to activate your Office suite:
- Open any Office application, such as Word.
- The activation wizard will appear automatically after a few seconds.
- Select "I want to activate the software over the Internet" and click "Next".
By completing these steps, your Office suite should be successfully activated, allowing you to use all Office applications seamlessly.

Phone Activation Guide
If you have purchased a phone activation key, follow this step-by-step guide to activate Office 2021 Professional Plus via phone.
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