Vista - Will System Restore recover deleted device driver?

Quite simply, I went into Device Manager (in my administrator account) and uninstalled my Novatel Ovation U727 USB modem and its device drivers because I was having problems with the modem deactivating itself from the USB port whenever I was online.

I then rebooted and plugged the modem back in, thinking Vista would detect the modem and reinstall the device drivers for it. However, it seems that uninstalling the device drivers actually completely purges them from the system. I tried using the Slingshot driver CD that came with the modem and my Windows DVD to find the missing device drivers.

I then went into Device Manager and searched online for drivers. I was able to retrieve device drivers for two of the four data interfaces that the modem apparently needs drivers for. I was able to get drivers installed for the modem and status port (com 4) components, but apparently there are two others that need device drivers.

I've already looked on Slingshot's website, but they don't have any drivers available.

Windows came with these drivers by default, so there must be a way to retrieve them without completely reinstalling Windows. Would using System Restore get back the uninstalled drivers?

I'm attaching a screencap of my Device Manager to show what I'm talking about.

Best I can say is it should, as long as you use a restore point that is before you deleted things. It has worked for me in the past in restoring drivers after a bad update install.

Thank you. It did recover the drivers. The random deactivations do remain a problem however, even with the option for Windows to deactivate things disabled.