Now, find the device that isn't working correctly in the Device Manager list of devices.
Select the plus sign to expand a category of devices to dig deeper if needed.
Now that you've found the problematic device (or the device you think is the root of other problems on your PC), double-click it to open its Properties.
Select the Driver tab at the top.
Here you'll find all the info on your current driver installation.
You can also get more information about the driver, and other files in the driver package but selecting Driver Details
One quick note at this point: rather than use the Roll Back Driver function at this stage, you could also try updating the driver to a newer edition by selecting Update Driver. This may solve your problem as well.
It could turn out that Windows doesn't have the old driver on hand, in which case the Roll Back Driver button will be grayed-out. If the Roll Back Driver button is showing, select the Roll Back Driver option. Windows will ask you if you're sure you want to roll back, and if you are, select Yes.
Windows will then go back in time and reset the driver version to a previously installed edition. In some cases this could be an earlier version of the driver you have installed right now, or it may be a version that came with Windows. If the updated driver you're rolling back from had new features or functionality be prepared that this functionality will be gone when you roll back.
Once the roll back process completes, select Close. You can now close all windows you've opened and may have to restart your computer if prompted by Windows.
Roll Back Driver is a great help in newer versions of windows - best of luck in using it to solve those common driver headaches!
Note: We always recommend users skip the hassles of trying to find their own hardware model numbers and use an automatic driver update tool like Driver Wizard.