I cannot use Microsoft 365 Personal subscription I got from App Store in my Windows 10. Please help?

Dear Apple Support community, 

I have Microsoft 356 Personal subscription (renewed every year). I have installed it and successfully use it in my Mac, but I wanted to use it in my Dell (Windows10). I could not activate it on my Windows10. It gives me the message of "There is a problem with your Microsoft account. To fix this, sign in to account.live.com from a browser." 

So I tried to get into this account.live.com from a browser, but I could not figure out what is the next step to get my office subscription work out in my Windows10. Indeed, I used my yahoo email account to subscribe (using App Store on MAC), and now I don't know how to use this subscription in my Windows10.

Any help please?