The solution is simple to find out what type is your Drive, HDD or SSD in Windows 10 and 8.1!
Please open the Optimize Drives Window (Defragmenter) in Windows 10 or 8.1 via the command dfrgui.
Please use keyboard shortcut [Windows+R] and use the command dfrgui and press ENTER! (... see Image-1 Arrow-1)
And now you can see the type of the Drive Solid state drive, Hard disk drive, ..... in Windows 10 or 8.1!
See also: ... defragmenter in Windows 8.1 / 8 (hard drives, optimization)!
FAQ 11: Updated on: June 14th 2015 16:24