How to install & activate MS Office 2021
I will explain how to install MS Office 2021.
1. Uninstall Existing Office
First, you must remove all previously installed MS Office programs.
https://aka.ms/SaRA-officeUninstallFromPC
Click the link above, and you will see a window like the one below.
After clicking 'Open', please wait a moment, and the following menu will appear automatically.
Click 'Yes' to proceed with the removal of the existing Office, and a PowerShell window will appear as shown below.
Wait until all tasks are complete, then press any key to close the window.
In some cases, it may not be possible to remove MS Office using PowerShell, so please proceed with the following steps after completing the above.
First, type 'Add or remove programs' in the Start menu search bar.
Delete all programs related to 'Microsoft 365 (Office)' and 'Microsoft Office' from the list of installed apps.
2. Install Office
https://officecdn.microsoft.com/db/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/en-us/ProPlus2021Retail.img
Download the Office 2021 installation file from the links above.
If you want another language, you can find and download the Office 2021 Professional Plus installation file from the link below.
All language archive: https://www.heidoc.net/joomla/technology-science/microsoft/16-office-2021-direct-download-links
The following installation steps are based on the English version.
Run "ProPlus2021Retail" from your Downloads folder.
Click "Open".
Run "Setup".
Make sure your computer stays online during installation and wait for it to complete.
Once installation is complete, click "Close".
Type "Excel" or "Word" in the Start menu search box and run the application. The product key input window will appear.
Enter the product key you received via email from Winstall.
When "Activate Office" is enabled as shown above, click the button.
Click "Accept" to agree to the license agreement.
Then, go to the Account tab and log in.
Even if you already have a Microsoft account, if multiple Office keys are registered, it may cause errors or invalidate existing keys. Therefore, please be sure to create a new account and log in.
After logging in, check your login and activation status.
If a window like the one above appears after accepting the Excel or Word license, please refer to the link below.