Probably resolved, but in case anyone else comes looking...
I have the Sculpt Comfort wireless mouse and keyboard set:
https://www.microsoft.com/accessories/en-us/products/keyboards/sculpt-comfort-desktop/l3v-00001
I am using them on a laptop, and I was experiencing the same thing. While the mouse was identified as a sculpt mouse, it was the wrong one, and the keyboard was identified as a generic wireless keyboard. Microsoft mouse and keyboard center said there were no compatible devices on the system.
Did the whole try different usb ports and so forth and then did this to get it to work:
1. While mouse and keyboard were connected, go to device manager and right click on the keyboard(s) and uninstall driver (and remove driver for keyboard). Did the same for the mouse (I have a laptop so I had a mouse left over).
2. Unplugged the wireless USB dongle.
3. Downloaded 2.7 version of Microsoft Mouse and Keyboard Center and installed it (Said yes to "reinstall". It comes up and says no compatible devices detected detected (since I don't have them plugged in)
4. Plugged in the USB wireless Dongle
- The keyboard and mouse were then identified and show up.
Don't know if that will work with a USB version and/or a desktop, but figured it would be worth noting in case someone else was searching and couldn't find a solution and came upon this thread...