Office 2021 Home & Student Download, Installation & Activation Instructions โ€“ Windows

This guide helps you install and activate Office 2021 Home & Student for Windows with a license that binds to your Microsoft account. This means once you redeem your key, it will stay securely linked to your account and can be reinstalled in the future without needing to buy another key โ€” as long as itโ€™s on one active device at a time.

Itโ€™s the ideal solution for students and families who want Microsoft Word, Excel, and PowerPoint without a subscription.

โš ๏ธ Before You Begin

โ€ข A Microsoft account is required
โ€ข Internet connection is necessary for installation and activation
โ€ข Your license is for one device only (unless specified otherwise)

โš ๏ธ Important:
Uninstall any other versions of Office or Excel (2016, 2019, or 2024) before installing Office 2021 Home & Student to prevent installation or activation errors.

โ„น๏ธ System Requirements

โ€ข OS: Windows 10 or Windows 11
โ€ข Processor: 1.6 GHz or faster, 2-core
โ€ข RAM: 4 GB (64-bit) or 2 GB (32-bit)
โ€ข Disk Space: 4 GB available
โ€ข Display: 1280 ร— 768 resolution
โ€ข Internet: Required for setup and activation
โ€ข Browser: Current version of Microsoft Edge, Chrome, or Firefox

๐Ÿ’ป Installation on Windows

  1. Go to the official Microsoft setup page:
    ๐Ÿ‘‰ https://setup.office.com

  2. Sign in with your Microsoft account
    โ€ข Create a new one if needed

  3. Enter your 25-character product key
    โ€ข Click Next to redeem the license
    โ€ข The key will now be permanently linked to your Microsoft account

  4. Download the installer
    โ€ข Choose Windows version if prompted
    โ€ข Click Install to begin the download

  5. Run the installer
    โ€ข Open the downloaded .exe file
    โ€ข Follow the on-screen instructions to complete setup

๐Ÿ” Activate Office 2021 Home & Student

After installation:
โ€ข Open any Office app (e.g., Word or Excel)
โ€ข Sign in using the same Microsoft account used to redeem your key
โ€ข Activation will complete automatically

โœ… You will see a message like:
โ€œProduct Activatedโ€ or โ€œOffice is licensed to: [your email]โ€

๐Ÿ”„ Reinstalling Office 2021 Home & Student

Since your key is bound to your Microsoft account, you can reinstall Office anytime:

  1. Go to your Microsoft Services & Subscriptions page:
    ๐Ÿ‘‰ https://account.microsoft.com/services

  2. Locate your Office 2021 Home & Student license

  3. Download the setup again

  4. Sign in with the same account during installation to re-activate

โš ๏ธ Note:
Office can only be used on one device at a time.
If you switch PCs, uninstall it from the old one before installing on the new one.

๐Ÿ›  Troubleshooting Activation

โ€ข Ensure youโ€™re signed into the correct Microsoft account
โ€ข Typo in Key: Double-check your license
โ€ข VPN Active?: Disable and retry
โ€ข Still not working?: Restart your PC and try again

โš ๏ธย If none of that works:ย Please contact our free 24/7 customer support team. Include your order number and a screenshot of any error message for faster assistance using one of the methods below:

๐Ÿ“ž Still Need Help?

โœ… Ready to Buy?

โžคBuy Office 2021 Home & Student for Windowsย โ€“ Get your activation key instantly and bind it to your Microsoft account for secure, lifetime use.

Experience the power of Microsoft Office โ€” permanently linked, future-proof, and built for everyday productivity

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Available Office 2021 Home & Student for Windows Product