|At some point between Monday and Wednesday of this week, my laptop has stopped recognizing any USB device I plug into either of the two ports. I last recall using it Sunday night with a GPS receiver. I went to use it again last night and it doesn’t acknowledge it’s plugged in. I then tried a USB drive with similar results. The built-in LED on the USB drive fails to light.|
I noticed that on Tuesday night there is a restore point labeled “software Distribution Service 2.0”, so I tried doing several system restores including this and other dates prior, but my system won’t successfully apply any of them.
I have gone into Device Manager and checked to see if there were any problems with the USB controllers. They all reported fine. I then uninstalled them and rebooted the laptop. As it came up, it reported new hardware and reinstalled the USB controllers and USB Root Hubs. When I plug in a device, same problem.
I keep my Norton AV 2005 updated. I am religious about doing Windows Updates. I use Zone Alarm Firewall. I regularly scan for spyware. I recently ran Error-Checking (including checking the physical platters) and ran a Defrag.
At this point I’m thinking it may be hardware failure. Does anyone have any other suggestions? Any and all will be GREATLY appreciated.