1. iPhone driver: USBAAPL.SYS.
* Connect you iPhone to your PC.
* On you PC, click. START > RUN.
* Type devmgmt.msc and click OK. The new window will display a list of device in your PC.
* Look down to Universal Serial Bus controllers. Click the “+” sign to expand the selection. iPhone will be listed in your PC either as Apple Mobile Device or Apple iPhone
* Right-click Apple Mobile Device (or Apple iPhone), then, choose Properties. Select the Driver tab.
* Lastly, click Driver Details to view more information about the drivers installed. You will see then what type of drivers installed in your PC.
* If USBAAPL.SYS driver is not there and you want to download and install it manually, download USBAAPL.SYS driver.
2. Apple Mobile Device Support should be present as a Windows Service
* Connect you iPhone to your PC.
* On you PC, click. START > RUN.
* Type services.msc and click OK. The new window will display a list of services running in your PC.
* You can sort the view in by clicking “Name” column header.
* See if “Apple Mobile Device Service” status is “Started.”
* If the status is not “Started”, right click on that row and choose Start from the small pop-up menu.
* If the service is already installed and started, right-click on that row and choose Restart from the small pop-up menu.