Before you start
- No other version of Microsoft Office may be installed on the computer. Remove earlier versions completely.
- You need an internet connection for the download and the activation.
- Microsoft Teams is not part of the package and is installed separately.
- Have the product key you received by email to hand.
Important: remove leftovers from earlier versions
If an old installation is left behind, activation often fails. Uninstall Office from the control panel, then clean up with the Microsoft tool.
This also applies to versions that were already on the computer when you bought it: Microsoft 365 trials, a pre-installed Office 2024 preview and OneNote installed separately. All of it has to go before you enter your key.
The old Microsoft removal tool completely deletes every Office version from 2010 up to Microsoft 365, including the leftovers a normal uninstall leaves behind.
Download the removal tool Opening the file starts a wizard that walks you through the removal. Restart the computer once when it is done.⬇️ Download
Choose your language – we recommend the 64-bit version (suitable for practically all modern PCs).
Install & activate Microsoft Office 2021 Standard
This guide takes you step by step through the download, installation and activation of Microsoft Office 2021 Standard – clearly explained, with real screenshots.
Installation & activation in 7 steps
Download the EXE file
Download the EXE file from the download table above. Choose your language and the matching version. This EXE file is the basis for installing the product.
Run the EXE file
Right-click the downloaded EXE file and select “Run as administrator”. Confirm User Account Control with “Yes”.
Setup is being prepared
Setup starts automatically – wait while “We're getting things ready” is displayed.
Office is being installed
Office is now downloaded and installed. Stay online until the process is complete.
Installation complete
When the message “You're all set! Office is installed now” appears, click “Close”.
Enter the product key
Open Word (or another Office app) and enter your 25-character product key as soon as you are prompted to do so.
If you are not prompted automatically: click on “File” → “Account” → “Change product key” and enter the key there.
Select “I want to activate the software over the Internet” and click “Next”.
Check activation
Under “File” → “Account” it now shows “Product Activated – Microsoft Office LTSC Standard 2021”.
System requirements
- 🖥 1 GHz processor or faster, 32-bit (x86) or 64-bit (x64)
- 🧠 1 GB RAM (32-bit) or 4 GB RAM (64-bit)
- 💾 4 GB of free hard disk space
- 🎮 DirectX 9 graphics card with WDDM 1.0 driver or higher
We wish you a successful installation. Should you have any problems or questions, our customer service is available to you at any time – we will help you as quickly as possible.
