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How to Download, Install and Activate Office 2021 Professional Plus

1. Use the following link to download the official English .img file of Office 20121 Professional Plus from Microsoft, if you do not have it already installed.

2. Once downloaded, install Winrar and extract the .img file, you can also double click it to mount it in your system. Run the setup file and install office. Once installed, open any office app and it will ask for a serial key and then for activation. Enter your serial key and when it asks for activation just select, “I want to activate the software by telephone”

3. After clicking next, select your country in Step 1 and note down the Installation ID in Step 2. Now, go to and enter your Installation ID with spaces. Select “Office 2016/2019” in the version dropdown and click on “GET” to get a Confirmation ID.

4. Enter the Confirmation ID in the office activation Window and your software will be permanently activated.


  1. I am not asked for an telephone option. What should I do now. It just asking for a serial key

    1. Just enter the key that you received and you will be able to see all the options.

  2. Ramesh Katte

    Confirmation Key is 48 numerical characters. Product Key is 25 characters Alpha-numeric.
    Please assist me in getting this product key…

  3. Ramesh Katte

    Please ignore my request sent earlier.
    Got it activated.
    Many thanks.

  4. atul chandra

    thank you does this confirmation number remain allways


    will it work on mac?

    1. Office 2021 is only meant for devices running Windows 10 and above.

  6. Is it possible to reinstall the office, if required ?

  7. Hershey Kat

    Ignore my last comment. The product got activated and its working fine.

  8. I have Previously downloaded office set up , if I install it , key will accept?

  9. Kibria Dastagir Dafadar

    Re-captcha was causing the problem. It was sorted myself.

  10. installed with key working satisfactory

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