Windows 10 "optimize drives" shows SSD as "hard disk drive"

I upgraded my old computer with a Samsung EVO 850. I did a clean Windows 10 installation.

Installed Samsung Magic and fixed all the AHCI settings. Now I have full 6Gb/s transfer speed.

However, my problem is Windows "Optimize Drives" tool wants to defrag my SSD like a hard drive. As far as I know, this is bad.

The rest of the OS works fine, and my 3rd party programs see that it's a SSD.

CPU: Intel Core i7 (4th gen)
Mobo: Asus P7P55DE_PRO
RAM: 8GB

Solution 1:

Windows detects the type based on the benchmarks results. Run winsat formal from a cmd.exe, started as admin to bench the drive again.

Now Windows should detect the drive again as SSD and should only TRIM it and don't do a fully defrag.

Command winsat formal didn't work for me, I used winsat diskformal