Keep the displayed error intact
Photograph the non-private error text and ask what happened immediately beforehand. An update, drive replacement or sudden shutdown belongs in the history. “No bootable device” describes a startup result; it does not alone prove that the storage medium has physically failed.
Separate detection from bootability
Use the exact system’s supported information screens to observe whether the drive is identified. Record its model if visible without exposing private identifiers publicly. Do not switch storage modes, clear security settings or initialise the drive as an exploratory step.
Let data priority govern escalation
Ask the owner whether important information is backed up before considering supported recovery or installation options. A drive that contains needed data deserves a preservation plan. Hand over the detection result and original message for assessment. A newly installed system is not a successful data-preserving repair if the original files were erased without agreement.
The drive is identified but startup fails
Preserve that detection result. It differs from the drive being absent from the supported information screen, and neither case justifies unapproved formatting. The next step should follow the system’s recovery guidance and the owner’s data priorities.
Your practice record
- Exact startup message
- Drive detection observed
- Recent changes recorded
- Backup and data priority agreed
Repair procedures involve heat, electricity, fragile parts and customer data. Practise under qualified supervision and work only on devices you are authorized to service.