Blue Screen: INACCESSIBLE_BOOT_DEVICE

In short: Windows cannot access the system drive (stop code 0x7B).

In more detail: Occurs at startup, often after a hardware change.

In Depth

Possible causes

• Changed SATA/NVMe mode in the UEFI.
• Defective drive or cable.
• Missing storage drivers.

Solutions

1. Set the drive mode in the UEFI back to the previous value.
2. Check cable and drive (SSD).
3. Use startup repair and the command prompt (bootrec).

See also: UEFI, Windows, SSDs