Gene Gn,  Try reading... How to Download and Install Drivers in the Correct Order   Rick
I had to reinstall W7 on my DELL from a newly purchased install disk.  The installation went well and Windows is running..unfortunately I can't get to the internet to upgrade all my DELL drivers.  I have the DELL installation disks for the DELL preinstalled Utilities/Tools/Applications.  From these disks I loaded the communications driver stipulated by DELL in their online support pages..the driver is CONEXANT-D400-USB-MODEM-RSVP-A02-SETUP-ZPE.  I initiate the installation of this driver, the activity bar proceeds properly and then I get a message DRIVE INSTALLATION FAILED COULD NOT FIND THE MODEM DEVICE FOR THIS DRIVER. I have a laptop and several ROKU's running OK on the internet.  My system is INSPIRON 620 and the computer is connected to the modem via ETHERNET cable. Am not familiar doing this sort of thing, so my question is whether there is another driver necessary for actually 'installing' the modem into the system, or is it a problem with my CenturyLink connection to this particular computer?
New W7 install can't find modem