USB stopped responding after installing window 7

Hi, i get the above error image
Hello, my Dell XPS M1530 laptop was using Windows Vista but I changed the Windows to Windows 7.
The window 7 functioned well for a period. my USB mouse functioning normally for a day or so but when I plugged in a memory stick, all the USB ports stopped responding, and Windows is unable to recognize any USB device still now.

I think this may be a problem about out-of-date drivers, I have downloaded all the important drivers, and I am following the procedure to install them. i installed Notebook System Software, but I still receiving an error while trying to install the program. It says that "Error 1327. Invalid Drive: G:"
I don’t understand this error.
Kindly assist
