58 Troubleshooting
Windows 7
Symptom 1
Windows does not load the WWAN adapter driver. Additionally, you
receive an error message that resembles the following:
Windows cannot load the device driver for this hardware because a
previous instance of the device driver is still in memory.
Resolution
Consider the following scenario:
• You have a Windows 7-based or Windows Server 2008 R2-
based computer that uses a third-party Wireless Wide Area
Network (WWAN) adapter.
• You plug a SIM card into the WWAN adapter and then connect
to the network by using the adapter.
• You put the computer into sleep mode.
• You remove the SIM card from the WWAN adapter, and then
you plug the SIM card back into the adapter.
• You resume the computer from sleep mode.
Please proceed by installing the Microsoft Hotfix located at the
following Web site:
http://support.microsoft.com/kb/2688892
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