Help repairing internal SSD Windows

[mikf32123]

I had Windows 10 installed on my SSD but since yesterday, it hasn't been able to boot. I have three drives in total, an SSD and two HDDs. I have tried booting multiple times but startup repair can never help. I have tried using the command prompt and multiple other fixes on the web but none have seemed to help. At the moment, i have installed Windows onto another internal drive but would like to be able to repair the SSD so my previous Windows isn't lost!

 

[jojesa]

Could you provide some info about your system?
Have you run a test to see if your SSD is still working?