1 of 1 people found this helpful
It is beginning to look like you will need to delete and create a new Partition using Windows DiskPart or possibly using Windows Disk Management as per this thread: https://linustechtips.com/main/topic/968012-trying-to-seperate-drives-in-from-storemi/
This STOREMI FAQ mentions how to use a free Partitioning Tool called MINITOOLS to help recover Storemi HDD. It is almost towards the end of the FAQs: https://www.amd.com/system/files/2018-04/AMD-StoreMI-FAQ.pdf
I really am not familiar with StoreMI.
Found this from STOREMI User Guide: https://www.amd.com/system/files/2018-04/AMD-StoreMI-Users-Guide.pdf