lonewolf7 :
I had the same problem (all of a sudden).
I expanded "Universal Serial Bus Controllers" branch in the device manager. My USB Root Hubs were showing warning symbol.
I just right clicked each of them, chose "Update Driver Software" and in the popup, chose "Search automatically for updated driver software".
Now the warning symbol in my USB Root Hubs disappeared and devices work without any issue.
Or, uninstall the drivers(USB root hubs), restart laptop, windows will automatically assign drivers for it.
Or, do a virus scan in safe mode with networking. See how it works.
Hi, Lonewolf7: First, thank you for trying to help. I really appreciate it. I tried all 3 solutions, and, unfortunately, none of them has worked. Also, before I even started to try the first solution, I took the battery out of the laptop and put it back in, thinking that that might work. It did not.
A friend has told me to try the following site/post on Tomshardware.com: www.tomshardware.com/forum/41785-63-ports-stopped-working-windows. I will go back to that forum and see if I can find something else to try.
Further, this friend has also suggested the following site: windows.microsoft.com/en-us/windows-vista/tips-for-solving-problems-with-usb-drives. I'll try that, too. If neither of these options works, I'll take this in to the repair shop.