However, before you proceed, bear the following points in mind:
Once trial versions expire, they will revert back to reduced functionality, essentially becoming file viewers. To get them to work again would require you to reinstall your Windows operating system – using a restore point or any similar image-based solution is unlikely to work.
You will not need a product key to install the application but you will need one to activate the product.
After you get a Microsoft ID, you will be able to activate the applications should you want to own the products outright with the product key card being the cheapest and usually fastest way of doing it.
Some security applications might quarantine setup.exe forcing you to manually whitelist the appropriate files.
In some cases the downloaded file will be an IMG format. If so, use 7-Zip or a similar archive utility to extract the files and run the relevant executable file (usually setup.exe).
All the files linked are genuine and legal, direct from the developer.
If you have any suggestions or if you find that any of these are not working, do let us know in the comments section below.