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

Read: SSD not showing up in Disk Management or BIOS 2] Check the Hard Drive in BIOS You should also ensure that your Hard Drive is being shown up in the BIOS and it has the correct settings.

If the hard drive is missing in File Explorer, you can quickly troubleshoot and fix this problem with Disk Management, Device Manager, DiskPart, and other tools, and here’s how on Windows 10.