Microsoft Office not installed ?

It never was free. They usually included a "free" 60 day trial version, after which you had to buy it.
No laptop ever can with a full version of MS Word or any MS Office product, they were all trial versions or demos.

If you want a free "office" type of package, look for "OpenOffice" or "LibreOffice". Both are free, and do just about everything the MS Office packages do....

You either torrent it, or buy it. But be careful.

The best way to get it for free would be to have someone else buy it for you. I would start by asking your parents if they can buy it for you or just give you the money so you can buy it yourself. If they can not help you then you start asking your relatives if any of them already have a copy you can have or if they would like to make a donation so you can buy it yourself. You can expand your circle by posting a message on your Facebook wall or on Twitter asking for donations.