Whenever you plug your iPhone to your Windows computer, and it fails to detect the device, then you know something is wrong.
Upon further exploration, we figured out many iPhone users are complaining that the error “Driver Not Installed” message appears while troubleshooting this problem.
During the troubleshooting process, you will also get “Access Denied” message. So how do you fix this problem?
Note #1: Depending on your Windows operating system, you may also get the message “Device driver software was not successfully installed” when you update drivers for either Windows 7 or Windows 8.
Note #2: Uninstalling and reinstalling iTunes may or may not work. From our test, it didn’t help in fixing the driver issue.
Solution: How To Fix Windows Driver Issue For iPhones / iPads
Plug your iPhone to your computer. Now go to My Computers. Click on “Apple iPhone” or anything that appears under “Unspecified” and click on Properties (it can also be Apple iPod, Apple iPad, or Apple iPhone).
This will open a new window with two tabs: General and Hardware.
Select Hardware, then the device under “Device Functions.” Click on Properties button, and from General tab select the “Change Settings.’
Click on “Driver” tab and select “Update Driver.” This will give you two option: to automatically update your Windows computer’s driver or to manually install it from your computer.
If you know the driver your computer needs, and you have it downloaded on your computer, select the manual option. Otherwise you can upgrade drivers automatically with another option.
That’s all you have to do. Now you will never receive the “Driver Not Installed” message and you will be able to connect your device to your computer successfully.