Firstly, you need to download the installation .DMG file.
You can do it either from your MyParagon account (in My Products section), or from its official web-page: NTFS for Mac 15
After the file’s been downloaded, it will appear in Downloads folder (by default).
Double-click on the downloaded .DMG file.
Installation window will appear.
Double click on “Install Paragon NTFS for Mac 15”.
In case it prompts whether to open an application, downloaded from the Internet, click Open.
Accept the Software License Agreement by ticking the box and click Next.
Please wait, until the installation process is complete, it may take a few minutes.
At the end of the installation process you will be prompted either to Start 10-day Trial or Activate the product.
Note: Trial mode means the product is fully functional for a limited amount of time.
If you wish to obtain a License Key to activate the product, there’s Buy now button, which will redirect you to the page, where you can purchase it.
Read more about NTFS for Mac 15 Activation: https://kb.paragon-software.com/article/4511
Done! All that remains is to reboot your Mac to make the changes apply.
Click Restart to finish installation and perform a reboot.