Im not sure what drivefinder serial is
if you are having trouble with your drivers

click start control panel administration tools computer management device manager scroll through all of your devices if you see a yellow question or exclamation mark ? ! or a red X you will need to update the drivers for this device right click select update driver/reinstall driver

if you can see your usb device but its not working sroll to Ports(Com&Ltd) right click to update driver
if you computer came with a motherboard disk the drivers could be on it

or you might have to download or update them using the slim drivers program

http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html

SlimDrivers automatically updates PC drivers with real-time scanning and cloud technology. The first cloud-based utility for updating and maintaining drivers, SlimDrivers provides instant optimization of the interaction between a computer and its system components and periperhals, such as printers, graphic and sound cards, motherboards, USB ports, game controllers and other devices and hardware.

SlimDrivers scans a PC, identifies the correct drivers needed, and retrieves them from the cloud, automatically installing the most current, precise drivers for each individual PC. SlimDrivers features a one-click, start scan button on its product homepage, which begins the process automatically to scan a PC and identify out-of-date or broken drivers. Then, seamlessly, SlimDrivers creates a personalized driver profile of that PC, and accesses the online cloud >http://majorgeeks.com/download.php?det=6171 License: Freeware
Requires: Win7/Vista/XP Driver Sweeper keeps your PC stable and fast with advanced driver removal that ensures the maximal performance of your PC. Driver Sweeper avoids driver conflicts and system failures by removing all previous driver entries. Combined with additional features such as backups and a desktop icon manager, Driver Sweeper offers a complete solution to all your driver needs.
http://majorgeeks.com/DriverMax_d5260.html Win7/Vista/XP Driver Max is a new tool that allows you to download the latest driver updates for your computer. No more searching for rare drivers on discs or on the web or inserting one installation CD after the other. Just create a free account, log in, and start downloading the updates that you need.
You can also export all your current drivers (or just the ones that work ok) to a folder or a compressed file. After reinstalling Windows you will have everything in one place!
Most of the situations when Windows is running slower are caused by faulty driver installations. Windows stores all versions of older drivers just in case you want to go back; sometimes it messes up older versions with more recent ones. The Export Wizard will only export the drivers you select by copying the needed files to a folder or a compressed ZIP file.
After reinstalling Windows all drivers will be back in place in less than 5 minutes - sparing you of searching, inserting disc after disk and losing precious time. The Import Drivers wizard allows you to install all the drivers that you exported earlier. The entire operation might take up to 5-10 minutes.
Just one single computer restart will be required after all drivers are reinstalled!
DriverMax is able to display a complete report of all drivers (versions, release dates) installed on your system. This feature can also be very useful when you want to analyze the differences between the drivers installed on different machines

http://download.cnet.com/2000-20_4.html
on the home page you should see a search tab just type in what you are looking for
(be precise) exclude - / you might have to search/try a few times to get it right or what you want also the download software finder under that there will be a list place a tick in the box of any one you want/need
all software windows software mac software mobile and web apps

http://majorgeeks.com/downloads35.html

also this link will provide you with many freeware and share drivers

hope this helps you