Q: windows 7 pc won't recognize iphone 6

I just got a new iphone 6, and am trying to sync it up with my PC using itunes via USB cable, but the PC doesn't seem to recognize the iPhone's existence.  When I plug in the phone to the USB cable I think I should get an alert on the phone "Trust this computer?", but that does not pop up.  Also, I expect to see a new filesystem show up on the PC, but nothing is there.  Finally, when I run iTunes, the device does not show up.

Tried different USB cables, same results.  Plugged iPhone into a mac with the same cable, and I get the "Trust this computer?" alert on the phone.

Used to work with this same PC with previous iPhone 6.

Details: PC running "Windows 7 Enterprise", iTunes 12.3.1.23 64 bit, iPhone 6 running iOS 9.1.

Following some other tips I found on the web, I tried checking the status of the driver.

I see this:

When I click "Update Driver" I get this:

Any suggestions?

Thanks,

Duncan

p.s. The only reason I'm doing this is I need to try to get my contacts synced from Outlook into the new phone.  Also, I'd like to backup the phone to iTunes so if it dies I can restore it.  I do NOT want to use iCloud.