Hi Gaganpreet,
First of all, I think you have mistakenly mentioned Optisystem 14 as the latest Optisystem version available, while you have used the right name in the title. As long as the Optisystem v.7 you have installed is not a cracked version, I don’t think it would make trouble for you. But I suggest in any case, install the trial in another OS on your PC, and not on the same OS as the one you have installed v.7.
Regards