Could be worth uninstalling both copies, should be given the option to keep any related work you have done, but back up the file beforehand. A new installation should sort it out. Obviously the program doesn't overwrite the trial, or the installation directories are in different areas. Have you checked that a new Shortcut to the program has been made.

Yap i have remove the previous installation of the program and install the new copy afterwards, but still a expiration error still occurs.