Fault type · drive undetected
When a machine refuses to list a disk, that is often good news here — the point at which it disappears names the broken part for us. Boards and firmware give out far more readily than the platters or NAND holding your files.
Speak to an engineer about it
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| On screen | What that tells you | First step |
|---|---|---|
| In Disk Management: Unknown, Not Initialized | Windows can see hardware but reads no valid signature or partition table | Never initialise |
| You must initialize a disk before Logical Disk Manager can access it | A prompt to stamp a new signature straight over your files | Say no, shut it down |
| In Disk Management: No Media | The controller replies; the storage behind it doesn't answer — hardware failure, as a rule | Stop reconnecting it |
| Not present in the BIOS | Electronics or firmware — dead board, blown protection diode, corrupt service area | Board-level repair |
| Capacity reported wrongly in BIOS (1TB reading as 8MB) | Corrupt firmware or translator — the disk no longer knows how big it is | Firmware work, not software |
| No spin-up, no LED, total silence | Failed PCB — commonly a TVS diode killed by a surge | Highly recoverable |
As soon as it lands with us, your device gets its own case number. An engineer works out the fault, says what can genuinely be pulled off, then puts one fixed price in writing — no charge for diagnosis, no obligation, and no chargeable work until you approve it.
Five minutes at BIOS, Disk Management and Explorer tells us whether we're facing an electronics repair of a few hundred pounds, a firmware fault or a logical job — before a thing is touched.
Shorted diodes and failed boards get fixed or swapped, and the ROM off your own drive moves across to the donor so the electronics know the platters they're driving.
As soon as it responds we take a full image, and the file system is rebuilt from that copy — your original is set aside the instant the clone finishes.
You sign off a complete list of the recovered files first; only then does the recovery fee fall due. Everything returns on fresh media, postage paid, and the job stays open until you confirm the files open at your end.
A pattern we see constantly: when a drive turns up with nothing detecting it, most of the time the fault sits in the board or the firmware — the parts surrounding your files rather than the files. So 'my computer can't see it' is not at all the same statement as 'my files are gone'.
The morning after a power cut it was lifeless — no spin-up, nothing in BIOS. A burnt TVS diode and a charred board were to blame; the ROM went onto a donor PCB and a full image came off the same day it was opened.
Often, yes. Failed electronics can be swapped, and the memory chips or platters they sit in front of are usually unharmed. No-power cases give some of our best results on the bench.
No. Initialising stamps a new signature across the very structures that map your files. Say no, switch it off, and have it looked at.
On its own, hardly ever. A drive absent from the BIOS can't announce itself — board or firmware — not data that has been wiped.
Probably not. A surge takes out the protection diode sitting on the drive's circuit board — precisely the sacrifice that part exists to make. The board is lost; the data normally isn't.
Powering a damaged device up again costs you data. Start a case first; diagnosis is free whatever you decide.