How to Get your iPhone to Sync on Windows 7. (Unknown Error 0xE8000065)

iPhone Windows 7

My iPhone Won’t Sync on Windows 7 Due to an “Unknown Error”?

Lately a few friends have been asking me about their latest problem where they are having issues were their iPhones won’t sync with Windows 7. In the majority of these cases Windows 7 is reporting an “Unknown Error” when they try to sync the iPhone with iTunes.

From what we have seen from doing some research online this problem seems to be more common for users who are running Windows 7 64-bit, and also motherboards with the P55 chipset. In some cases users are reporting the Unknown Error message along with an error code 0xE8000065.

This problem actually goes back to some of the power management problems I discussed in a previous article entitled “How to Wake a PC from Hibernation / Sleep / Stand By on Windows” which discusses Power Management issues with Windows 7 and the USB ports on the motherboard.

For information on How To fix the iPhone / Windows 7 sync issue, follow the instructions below:

  1. First click “Start” and then “Right Click” on “Computer” and select “Properties
  2. Under the Properties window click on the “Device Manager” link in the upper left corner.
  3. In Device Manager click on the arrow next to “Universal Serial Bus controllers”. Look for the entries labeled “USB Root Hub” and right click on the first one and select “Properties”.
  4. Under Properties, click on the “Power Management” tab.
  5. Under Power Management uncheck the option that says “Allow the computer to turn off this device to save power” and then click “OK”.
  6. Repeat this process for each entry of USB Root Hub going down the list in device manager.

Once you have changed them the Power Management options of each entry of USB Root Hub reboot your PC and see if you are now able to sync your iPhone.

This issue is similar to the cases where Windows 7 will not come out of sleep mode when users have connected a USB keyboard or mouse which I discuss in the article I linked to above.


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