Being able to tell if modem drivers are installed

To the experts:  

I have a Toshiba Cable Modem connected with Ethernet.  The modem works fine.  I can't tell if the drivers are installed. How can I tell if the drivers are installed?

I used the CD that has the files of this modem.  I tried to install the driver files using a zip program from a CD but I clicked the Extract button and they appeared on the Desktop.  What file should I extract the driver files to?  I manually put them in C:\Windows\System.

Thank you.

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Harisha M GEngineerCommented:
Hi webdziner,
> The modem works fine.
    That means the drivers are installed. Suppose it is not installed, your modem would not work.

To see.... Right click My Computer --> Properties --> Hardware --> Device Manager and see whether you have any bad drivers or no drivers

webdzinerAuthor Commented:

Thank you for your comment.  I do not see in the Device Manager a PCI device.  When I click to install it  manually Toshiba (the brand of modem) does not display the correct model.  What should I do to install a PCI device when the wrong model is displayed?  

Thank you.  
Harisha M GEngineerCommented:
You can right click that and and then goto the property page where you will have Reinstall Driver option. Select the required driver from CD or Backup and install that driver. If something bad happens, you can Revert back to the original configuration by going for System Restore.

But, since it is working, why do you want to change it ?

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