Several users have reported an issue in which Windows Mobile Devices (HTC, HP, etc.) are not recognized by computers running Windows 7. In many cases, a driver installation error will occur.

Fix

This issue can generally be solved via the following process:

• Disconnect the device if it is connected
• Uninstall the Windows Mobile device driver (if it exists) by opening the Control Panel then selecting the Device Manager. Find the proper driver, then right-click it and select “Uninstall.”
• On the Windows Mobile device itself, go to Start>Settings>Connections>USB to PC and deselect “Enable advanced network functionality.”
• Reconnect the Windows Mobile device and allow Windows 7 to automatically setup the device

You may also need to download and install the Windows Mobile Device Center after performing the above process.