While there are dozens of disk analyzer programs my preference is SpaceSniffer. It's quick in scanning your drive. My 250GB SSD took approx 1:20 at 100% scanning completed. Of course this varies with the drive capacities, amount of free space, and whether it's a standard hard drive or SSD.
SpaceSniffer has a few goodies. Besides the graphical GUI, it supports drag and drop, multiple views for different file types, customized search criteria and other features.
The website shows it's been tested on Windows 2000 thru Windows 8, however it works with 10 just as well.
The web page can be visited here.