After uninstalling software, Open RUN (Windows key + R) and type regedit and hit Enter.
navigate to HKEY_LOCAL_MACHINE SOFTWARE Your Software name from left pane of this window. If you find any Key name with your software name then just Delete that Key.
Similarly navigate to HKEY_CURRENT_USER Software Your Software name and if you find any key with your software name then just Delete it and close the Registry Editor window.
then delete temp folder
Now Restart your PC and install the expired software and you can use it again for trial period
