Prior to continuing, I'd like to make sure the issue you are encountering is not occurring as a result of an application conflict. The best way to proceed would be to try loading under a new Window's Administrator account and in a "clean boot" state.
Create a new Windows Administrator (<--important that its an Administrator) account:
Windows 7:
http://windows.microsoft.com/en-us/windows/create-user-account#create-user-account=windows-7
Windows 10:
http://windows.microsoft.com/en-us/windows-10/create-a-local-user-account-in-windows-10
Windows 8:
http://windows.microsoft.com/en-us/windows/create-user-account#create-user-account=windows-8
Log in under that account and try. If it fails, and while still under that account, please click the link below for performing a 'clean boot' under it:
https://support.microsoft.com/en-us/kb/929135
After you've loaded Windows in a clean state, please download this file:
https://cdn.stardock.us/support/uploads/GroupyStart.zip
Run the batch file in it to start the Groupy service.