I just bought a new laptop from dell official website. It is window 10 and without microsoft office.

Previously, I was using accer with window 7 if not mistaken. I bought from a bro's friend. It come with microsoft office (word, excel,powerpoint and so on)

This is my first time using window 10 and I am wonder how to get microsoft office for free and it is good to use like I use in window 7 previously without the need to activate or subscribe ( pay for it).

I am not familiar with this kinds of things. is it compulsory for window 10 to oay for the microsoft office? and I realize what I pay for is like it can be install ( use) 5 time at different laptop. But, I just need for my only one laptop.

Please advise me on this matter .Guys. Thanks