that problem is typically caused by improper maintenance of the computer. 1) Go to start screen, type and search %Temp%, then delete all of them. (C:\Users\<user account>\AppData\Local\Temp.) 2) Go to Windows Explorer at C:\Windows\Temp, and delete all the files under Temp folder. 3) Go to the Start screen, type and search Windows Update. Then select "Check for updates" from the search list to check and install all important updates. 4) Reboot your computer. After this, please try to re-install Twelvesky2 software if this does not solve the Problem you should contact the support team.