I was installing a card reader in my system to fill up 8 gb memory stick for my mobile. I was trying to install it by the CD provided with the card reader. When I insert the usb connector it was showing installing on the screen but after some time a error occured. It denotes that "Installation failed because function driver not specified". The card reader failed to installed. I thought the card reader was a bad one. Then I tried my HP printer. But no progress the same error pop out. What does it means. I never had this problem before.