Most home PC users (and quite a few big businesses these days) don't bother with Microsoft Word at all. They simply choose one of the freebies, which are just as good anyway (and fully compatible with Microsoft Office).
OpenOffice has long been the most popular freebie. (It's what I use):
https://www.openoffice.org/
However LibreOffice has a rapidly growing fanbase (both here on AB and in the technical press):
https://www.libreoffice.org/
WPS Office is less well-known but equally well reviewed:
https://www.wps.com/
If you really must have Microsoft Office (er, WHY???), the latest version that doesn't require a subscription is Microsoft Office 2019, with the Home & Student Edition officially priced at US$149.99 (or £112.71 in PC World) but it's available far cheaper online. [Check out independent reviews for any site that's offering really cheaply though. They might not all be genuine].
If you wanted an older version (but more recent than the one you've currently got), you can buy Microsoft Office 2016 online for around twenty quid.
However if you've got an installation disk for Microsoft Office 2013, it's fully compatible with Windows 10, so you could run it on your new laptop. (It would seem silly to buy it now though, as you can get hold of Microsoft Office 2016 for around the same price or, as I suggested above, just use a freebie anyway).