Driver Store Explorer - Open source tool to help manage your drivers on Windows.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Driver Easy - Driver Easy is a Driver Updater for Windows 10, 8.1, 7. One Click Update All out-of-date and Unknown Device Drivers. Faster & Easily. Just Download Now!
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Driver Genius - Driver Genius is a professional driver management tool that features both driver management and hardware diagnostics. Driver Genius can backup, restore and update all your drivers in several mouse clicks.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.