Has anyone else had this problem and/or have a solution? I have a late 2012 27" iMac and have run Windows 7 Home Edition via boot camp. I have had notification and have upgraded to Windows 10. On checking Device Manager in Windows 10 found the orange exclamation mark against my Canon MP610 printer and the Bluetooth USB Host Controller. On checking Canon site they state that the MP610 is not and will not be supported in Windows 10. Re Bluetooth USB Host Controller on clicking "Update Driver" I have been informed that there is no driver available. Has anyone a solution re the latter or can offer any advice? (Apart from waiting until Apple decide to support Windows 10 in Boot Camp which will probably be months) The scroll feature on the Apple Magic Mouse does not work when booted in Windows 10.