Why is Word not working on my computer? Please send me a 25-digit code.

Disclaimer: Due to this thread is posted in Russian locale forum. But because you use English for this post, I will answer according to the language you use. If you need me to answer in Russian, please feel free to let me know, I'll answer in the language you are comfortable with.  

Hello Бибайша Тұрғынбаева,

Thank you for posting on Microsoft Q&A forum

Word is not working on your computer because it's not activated, that is why it's asking you for the product key. I can’t give you a 25‑digit product key and no one legitimately can.

If you want to use Word, then you have to purchase it. There are two varieties of Office you can purchase that is Microsoft 365 (subscription) or buy a onetime Office license (Office 2021/2024)

Here is the site where you can buy it: https://www.microsoft.com/en-us/microsoft-365/buy/microsoft-365

If you don't like to purchase but still want to use Word, then I recommend you try the web version. It's just like the desktop version but with only a few limitations. You can access to the web version of Word here: https://word.cloud.microsoft/

If you have any more questions or issues, feel free reply back to this post. I'll be happy to help.