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When your iPhone can't sync in Windows 7

Does your iPhone have sync problems with your Windows 7 computer?

This tip will help you increase your chances of solving the problem by providing general guidance and links to authoritative sites.

The typical symptom is that the iPhone is recognized by the Windows 7 computer, but iTunes will fail to connect, reporting an "unknown error" (usually with the error code 0xE8000065).

The first and simplest attempt to fix the problem is by disabling USB power management as follows:
  1. In the Start menu, type DEVMGMT.MSC (and press the Enter key) to display Device Manager.
  2. Click View and select "Devices By Type".
  3. Expand the Universal Serial Bus controllers section of the tree
  4. Right-click each USB Root Hub entry, then select Properties.
  5. In Properties, select "Power Management and uncheck "Allow the computer to turn off this device to save power".
  6. Restart your computer.
Did this solve the problem? 

If this didn't solve the problem, check whether your computer's mainboard is made by Gigabyte Technology. About 4 days ago, Gigabyte released a BIOS update that fixes the problem. Read the following news article to learn more about this update and how to get it: Update Fixes IPhone Sync Problem With Windows 7 for Some.

Otherwise, try checking the Hardware & Devices forum in

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