Easiest to try, if you have a Restore Point from just before the issue popped up.
If not and the drivers are really not on the system I would download the latest from the manufacturer(or ask someone to download for you if you have no machines with internet.)
My Computer
Computer Manufacturer/Model Number
HP Media Center
OS
Windows 7 32 bit
CPU
AMD 5200+ dual core
Memory
2 GB
Graphics Card(s)
NVidia GeForce 6150SE 128 MB
Monitor(s) Displays
CRT
Screen Resolution
1280x1024
Hard Drives
500 GB Sata internal :
SIIG USB 3.0 docking stations w/WD Caviar Black 6 Gb/s drives