Hi,
Please default the desktop shortcut option to unselected during the standard Calibre for Windows install.
Here is an excerpt from the Windows User Experience Interaction Guidelines:
"If you do only one thing...
Don't abuse the desktop—keep users in control. If your target users are likely to use your program frequently, provide an option during setup to put a shortcut on the desktop, unselected by default."
http://msdn.microsoft.com/en-us/libr...spx#guidelines
Regards,
Jason