Windows 8 and iTunes cannot detect iPhone

Question

Hi, I am using Windows 8 and iPhone 4S. Recently both Windows and iTunes cannot detect my iPhone. I have tried uninstalling and reinstalling the latest iTunes and related software, but no use. I tried follow this article http://support.apple.com/kb/TS1538 , but in doing the step "If the Apple Mobile Device USB Driver is not listed", replugging the device, I still can't find Apple iPhone in Device Manager.

Answer 1

Hi, I have run the diagnostics and this is the result.
Microsoft Windows 8 x64 Business Edition (Build 9200)
Hewlett-Packard HP Pavilion g4 Notebook PC
iTunes 11.0.2.26
QuickTime not available
FairPlay 2.3.31
Apple Application Support 2.3.3
iPod Updater Library 10.0d2
CD Driver 2.2.3.0
CD Driver DLL 2.1.3.1
Apple Mobile Device 6.1.0.13
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 0116B83009FC5BA0
Current user is not an administrator.
The current local date and time is 2013-03-19 21:29:56.
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.
Genius ID: 102972d87e159603ee6a64fcec3e408b
**** Network Connectivity Tests ****
Network Adapter Information
Adapter Name:          {B17D9219-7E1D-40CE-BAC6-420714253A52}
Description:          Bluetooth Device (Personal Area Network)
IP Address:          0.0.0.0
Subnet Mask:          0.0.0.0
Default Gateway:          0.0.0.0
DHCP Enabled:          Yes
DHCP Server:
Lease Obtained:          Thu Jan 01 08:00:00 1970
Lease Expires:          Thu Jan 01 08:00:00 1970
DNS Servers:
Adapter Name:          {66304A8E-7EBA-4CAA-B2BF-A8AEF04C5A68}
Description:          Microsoft Wi-Fi Direct Virtual Adapter
IP Address:          0.0.0.0
Subnet Mask:          0.0.0.0
Default Gateway:          0.0.0.0
DHCP Enabled:          Yes
DHCP Server:
Lease Obtained:          Thu Jan 01 08:00:00 1970
Lease Expires:          Thu Jan 01 08:00:00 1970
DNS Servers:
Adapter Name:          {43659E23-A7AF-4613-BF73-52663D28FCA9}
Description:          Qualcomm Atheros AR9485 802.11b/g/n WiFi Adapter
IP Address:          192.168.1.3
Subnet Mask:          255.255.255.0
Default Gateway:          192.168.1.1
DHCP Enabled:          Yes
DHCP Server:          192.168.1.1
Lease Obtained:          Tue Mar 19 20:53:56 2013
Lease Expires:          Wed Mar 20 20:53:56 2013
DNS Servers:          192.168.1.1
Adapter Name:          {CDCA5430-75A2-4270-B5C3-181137F729B5}
Description:          Realtek PCIe FE Family Controller
IP Address:          0.0.0.0
Subnet Mask:          0.0.0.0
Default Gateway:          0.0.0.0
DHCP Enabled:          Yes
DHCP Server:
Lease Obtained:          Thu Jan 01 08:00:00 1970
Lease Expires:          Thu Jan 01 08:00:00 1970
DNS Servers:
Active Connection:          LAN Connection
Connected:          Yes
Online:                    Yes
Using Modem:          No
Using LAN:          Yes
Using Proxy:          No
Firewall Information
Windows Firewall is on.
iTunes is NOT enabled in Windows Firewall.
Connection attempt to Apple web site was successful.
Connection attempt to browsing iTunes Store was successful.
Connection attempt to purchasing from iTunes Store was successful.
Connection attempt to iPhone activation server was successful.
Connection attempt to firmware update server was unsuccessful.
The network connection timed out.
Connection attempt to Gracenote server was successful.
Last successful iTunes Store access was 2013-03-19 21:23:25.
**** Device Connectivity Tests ****
iPodService 11.0.2.26 (x64) is currently running.
iTunesHelper 11.0.2.26 is currently 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.
Most Recent Devices Not Currently Connected:
iPhone 4S running firmware version 6.1
Serial Number:          C39H7QQMDTD7
**** Device Sync Tests ****
No iPod, iPhone, or iPad found.