Delete Registry to Extend Trial PeriodIn this method you need to find and delete your trial software registry. After trial period is expired, uninstall the software and follow the steps.After uninstalling software, Open RUN (Windows key + R) and type regedit and hit Enter.Now Registry Editor Window will appear and here 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.Again go to RUN and type %temp% and hit Enter.Now Delete all the things in that folder. Dont worry these are the temporary files and not necessary for your operating system.Now go to C:\Users\your username here\AppData. Under AppData open all three folders "Local", "LocalLow" and "Roaming and check. Under these three folders if you find any folder or anything with your Software's name, just delete it.Now Restart your PC and install the expired software and you can use it again for trial period. If you install the expired software without following the above steps then you dont get trial period back.