It is not possible to identify the device after the itunes update, and it is often seen during the Windows7 system's use, so what can be done? Today's small series to Win7 pure version as an example with everyone to learn under the itunes update can not identify the problem of equipment, users need to look at it quickly.
1. Connect the equipment, on the computer desktop, the right mouse button "Computer" icon, select "Management."
2. In the Open Computer Management interface, in turn, locate Device Manager-portable devices-right-click the Apple iphone--Update driver software.
3. In the updated driver Software dialog box that appears, select browse the computer to find driver software.
4. Click "Select from the list of device drivers for your computer".
5. Click the "Install from disk" button in the lower-right corner, and then click "Browse" in the pop-up dialog box. Follow the path below C:Program FilesCommon filesapplemobile Device supportdrivers, locate a Usbaapl.inf file, and then open it. If your system is a 64-bit WIN7 system, then this is the same path, and the file is Usbaapl64.inf.
6. Click "Next" to complete the driver installation process to install the Apple mobile device USB driver drive.
7. Then connect to itunes to successfully identify your iOS7 device.
Article excerpt from: (www.xp14.com/win7/1.html)