48 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
