Maybe you should try out Svetlana's solution:
http://answers.microsoft.com/message/30ae1676-3057-40b4-970e-6bdf6e8f1a9e?threadId=eb784d4c-cf69-45ee-aeb5-3ec3be3e66fc
"Everything works, connect your nokia to pc,go to device manager-ports-NOKIA USB SERIAL PORT-Right click-deactivate (NOT "Delete), then modems-NOKIA USB Modem-Right click-deactivate, disconnect
phone and,restart PC if needed. Your PC Suite already Works 98% (sync,backup,galery). To add another "%" for usb modem you have to download HUAWEI app "Mobile Partner" and install it,connect your nokia to pc, go to modems-NOKIA USB Modem-Right click-update
driver -manually-from already installed-uncheck-HUAWEI INCORPORATED--HUAWEI MOBILE CONNECT 3G MODEM-"yes" and disconnect cable immediately-then modems-NOKIA USB Modem-Right click-activate. Injoy. Don't Forget in modem propertyes add initialization command."
If you don't need to use your phone as a modem, this is a very simple solution. Don't have to install anything. For many this works fine. I can use my Nokia 808 now with the usb-cable and both PC Suite and Nokia Suite work fine on Windows 10 (64 bit).
-Timo