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Hello,Akto7
Welcome to the Microsoft community!
I have realized that you are unable to find a way to reinstall your Office 2016.
Before that, I would like to ask you for some information to better address your question.
Typically, Office 2016 licenses are tied to a Microsoft personal account. Are you currently that the site https://account.microsoft.com/services can't find your product.
Where did you purchase your license? Is the current Office 2016 Home and Student Edition or another version?
I can provide you with an installer for Office 2016 Home and Student Edition if you need it. If this is not your current version, please let me know and I will get you the correct version.
Feel free to post back if you need further assistance.
Thank you for your understanding and patience and I look forward to hearing from you.
Ryan - MSFT | Microsoft Community Support Specialist