Well, good news ! In Windows 10 you no longer need Daemon Tools in order to mount a ISO DVD image!
You just double click in Windows File Explorer on the .ISO image file and it will be automatically mounted as a new virtual DVD drive. Or right-click with your mouse on the .ISO image file and select Mount from the popup menu.
To un-mount just right-click with your mouse on the mounted virtual DVD drive and select Eject.
We also recommend reading this book if you have problems using Windows 10