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Choose your language – we recommend the 64-bit version (right for virtually all modern PCs).
Install & activate Microsoft Office 2021 Standard
This guide walks you step by step through downloading, installing and activating 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 right version. This EXE file is the basis for the installation of the product.
Run the EXE file
Right-click the downloaded EXE file and select “Run as administrator”. Confirm the User Account Control prompt with “Yes”.
Setup is preparing
The setup starts automatically – please wait while “We're getting things ready” is displayed.
Office is installing
Office is now downloaded and installed. Please stay online until the process is finished.
Installation completed
When the message “You're all set! Office is installed now” appears, click “Close”.
Enter your product key
Open Word (or any other Office app) and enter your 25-character product key when prompted.

If you are not prompted automatically: click “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”, “Product Activated – Microsoft Office LTSC Standard 2021” is now displayed.
System requirements
- 🖥 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
- 🧠 1 GB RAM (32 bit) or 4 GB RAM (64 bit)
- 💾 4 GB of available hard disk space
- 🎮 DirectX 9 graphics device with WDDM 1.0 or higher driver
We wish you a successful installation. If you have any problems or questions, our customer service is available at any time – we will help you as soon as possible.
Microsoft Office
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