Hi, Agham I think you changed the folder for new version installation, if you remember kindly install in the fist path you coosen else please open run/search for services.msc and find the name of services which contains name GSToffline and gstoffline64 , right click on each one to get properties details, now note down the path, uninstall the utility and install the utility again at the same path , it will work 100%
thanks,
Vinay
feel free to email me vinaisharma @ gmail.com