Fixing Wireless Card installation on Lenovo ThinkPad T41
The yellow question mark shown at the Device Manager is the most
problem people experience. That’s a computer system’s sign that there
is one device driver installed incorrectly or unknown. The user of IBM
T40 2373 7U Thinkpad just installed Intel 802.11b Wifi Wireless Card
NIC 91P7266 meet this problem after installed it device drivers.
Since he’s said that the system not allows him to install the download
driver, then he’s got a massage said: Unable to install… found new
hardware dialog box is not open and the installation is only launched
once…. In addition there is a yellow question mark next to the
adapter in the Device Manager, which also tells that the device is
unknown…..
To resolve the system that not allows installing the download driver,
at the first you can try to uninstall the driver. And then download
the device driver here here
After downloading and extract the driver, from your Lenovo T40 2373 7U
laptop go to C: => Drivers => Win => Wlanint and run the setup file.
In case you’re still get the same problem, might it cause of an older
wireless cards and SP3. You may want to upgrade the card to a newer
one. And also try to return the system to an earlier date and re-try
installing the driver.
