Couple of things you can try to get the drivers back:
- Use Windows update to see if there are any hardware drivers available
- If you have the CDs for those devices, use those to get the drivers back
- Visit Manufacturer's website to see if there are drivers available for those devices
- Under device manager, Right click, update driver, choose advanced option and let windows search for drivers under windows.old. If windows finds the right drivers, it will automatically install them for you.
hope this helps. let us know.