Hello.  
I have just installed windows 8.1 Enterprise 64bit edition. 
When I connected my camera to the PC, windows didnt detect it. 
I also instaled all the canon software, but it didnt help.  
In the device menager, i see the camera, but it shows that the driver is not available. 
On the microsoft website i found the so called update, but when trying to install it, i got an error message saying something like "not compatible with my win version"  
Anyone has any idea how to fix this?   
Getting pictures is not a problem, but instaling custom presets is, as you have to use the canon software.  
Please help.  
Miha