While there is no "official" button to reset the 10-day trial for Microsoft NTFS for Mac by Paragon Software

: You can extend the trial period by 5 days by sharing the product on Facebook. Open the application and go to the Activation "Expires in X days. Extend?" "Tell your friends"

also offers a 15-day trial. They don’t share trial tracking with Paragon. After Paragon expires, you can legally try Tuxera for two more weeks.