If your computer doesn't detect NVMe SSD, verify the connection, change drive letter & format SSD, etc to fix NVMe SSD not detected issue.

Recently released Windows 11 24H2 updates are reportedly causing data corruption and failure issues for some SSD and HDD ...

Microsoft told Windows Latest that it's investigating reports of SSD data corruption/failure after Windows 11 KB5063878.

Those were a few ways to fix hard disks or partitions not detected when installing Windows 11. As long as your HDD is not corrupted and it is being detected by BIOS, the above methods should help ...