You will need to check your computer manufacturer's website on the Support Downloads page for your model to look for the apps you want.
I found the fingerprint reader here: http://www.csd.toshiba.com/cgi-bin/t...lFamily=804517
Check Windows Updates for any newer drivers, then your Device manager to see any missing drivers which you can also download from the page above.
Perhaps your computer came with an Apps/Drivers CD where you can also look for these.
Or Google the exact name for the hardware listed in the Device Manager and search for the app and/or driver.