If you have problems with the software, then I recommend logging on the official website to download a new version. Alternatively, make sure that when the installation takes place to use Run as Administrator option to allow the installation files to be copied to the correct place, or you'll encounter errors. Access the website, log-in with your details and then download the new version of the software. While installing, you should disable the anti-virus application as well. This could also interfere with installation and functionality.
