Storgage Spaces deleted after 1 damaged disc drive . how to recover data on other drive of mirror (showing non allocated space in disc management)

Question

yesterday 1 drive of my mirror Group in Storage Spaces in windows 10 was damaged. So I disconnected both drives , the damaged one and the good one. After that I deleted the group in the Storage Spaces. But now when I connect again the good working drive , it mentions in disc management 'non allocated space'. The RAID 1 mirror in Storage Spaces has the ReFS filesystem. What can I do to see back the data on the good working drive ? So I want to have the good working drive again normally. So to resume :

• yesterday I disconnected both drives of a mirror in Storage Spaces in Windows 10, because of a damaged drive.
• after that I deleted the group in the Storage Spaces.
• than I connected again the good working drive of the mirror.
• but now I see in disc management : "non allocated space" for the good working drive. I cannot see a drive letter.

What I want is the good working drive to work normally again. Can I use a tool to do this ? of Microsoft ? There is important data (old photos) on the good working drive, so it's important for me to have him working again. For safety I disconnected both drives for the moment until I find a solution for this.

Answer 1

1. Download and run TestDisk
2. Use it to scan the drive and attempt to recover the partition table
3. If successful, this may restore access to your data.