Q: Cannot sync iPad post upgrade.

Since upgrading to iOS7 and iTunes 11.1 I cannot sync my iPad 2; it hangs on step 6. I also appear to have lost all of my iBooks documents from the iPad. The documents are all backed up, as is all of the rest of my content, but I would like to be able to get the iBooks documents back on the iPad. I have tried rebooting everything, deleting and reinstalling iBooks, resetting the iPad and running the sync diagnostics (results below; why it cannot find a USB or Firewire controller since the machine has both and works with both is beyond me) and restoring the iPad. Googling suggests a number of people are having similar problems with syncing to iDevices. The only other thing I have done recently is move the iTunes library to a new PC instead of my older Macbook Pro due to impending hard drive failure on the Mac, but that was a while back and the problems seem to start with iOS 7.

Any ideas?

Microsoft Windows 8 x64 Home Premium Edition (Build 9200)

Gigabyte Technology Co., Ltd. GA-78LMT-USB3

iTunes 11.1.0.126

QuickTime 7.7.4

FairPlay 2.5.16

Apple Application Support 2.3.6

iPod Updater Library 11.1f5

CD Driver 2.2.3.0

CD Driver DLL 2.1.3.1

Apple Mobile Device 7.0.0.117

Apple Mobile Device Driver 1.64.0.0

Bonjour 3.0.0.10 (333.10)

Gracenote SDK 1.9.6.502

Gracenote MusicID 1.9.6.115

Gracenote Submit 1.9.6.143

Gracenote DSP 1.9.6.45

iTunes Serial Number[redacted]

Current user is not an administrator.

The current local date and time is 2013-09-29 14:27:29.

iTunes is not running in safe mode.

WebKit accelerated compositing is enabled.

HDCP is supported.

Core Media is supported.

**** External Plug-ins Information ****

No external plug-ins installed.

**** Device Connectivity Tests ****

iPodService 11.1.0.126 (x64) is currently running.

iTunesHelper is currently not running.

Apple Mobile Device service 3.3.0.0 is currently running.

No Universal Serial Bus Controller found.

No FireWire (IEEE 1394) Host Controller found.

Connected Device Information:

Sevoflurane’s iPad, iPad 2 (GSM) running firmware version 7.0.2

Serial Number:       [redacted]

Most Recent Devices Not Currently Connected:

iPod classic running firmware version 2.0.4

Serial Number:       [redacted]

**** Device Sync Tests ****

Sync tests completed successfully.