If your machine is working as you want it to work, leave it alone. There is loads of damage caused to computer systems by unnecessary driver updates and other "improvements", sometimes damage so severe that re-installations of software are required.
Even with "critical" Windows updates, I leave them until someone comes on here and confirms they are safe to download (having been caught out once by an update that wasn't the best of Microsoft's efforts).
The advice from anchor/ -pops- is sound and programs like Driver Detective and others may not have the updates which are 100% compatable with your devices.Which as said could lead you into a lot of problems.
Stick to manufactures specific driver for you hardware/software unless no longer available.