Do now
- Switch off the device and stop stressing the drive.
- Record the exact system error or display.
- Stop all further tests after a fall or unusual sounds.
- Preserve existing passwords and encryption information.
Data loss guidance
Hard drive not detected? Do not initialise or format it.
When an internal or external drive is missing from the system, causes range from the connection to mechanical damage. Avoid further changes and unnecessary startup attempts.
Further attempts may worsen damage or change recoverable data.
Immediate precautions
Protect the remaining options.
Avoid
- Formatting, initialising or creating a partition.
- Running file-system repairs such as CHKDSK.
- Trying different adapters when the drive makes noises.
- Restoring important files onto the same storage medium.
Possible causes
Similar symptoms can have different causes.
A reliable assessment requires examination of the actual medium.
Connection or power supply
Cables, USB enclosures, adapters or power supplies may prevent communication.
Electronics or firmware
The controller, circuit board or internal service data may block correct identification.
Mechanical damage
Heads, motor or surfaces may be affected by a fall, wear or shock.
Partition and file system
Hardware may be detected while the partition table, volume or file system is unreadable.
Professional diagnosis
Isolate the fault before reconstructing data.
Storage technology, damage and data priorities determine the route, not a one-size-fits-all software solution.
01 · Distinguish the detection level
We establish whether the drive is missing electrically, in BIOS, as a device or only in the file system.
02 · Limit access to reduce risk
Technical condition is checked before longer reads or software analysis.
03 · Image before reconstruction
Where possible, a controlled sector-by-sector working image is created first.
04 · Check the file system and data
Reconstruction uses a working copy; original data is not changed unnecessarily.
Related information
Cologne and nationwide
Assessed in Cologne, accessible from across Germany.
Local cases use an agreed handover route. From across Germany, securely ship your storage medium after registration. International shipments require prior acceptance, transport and return arrangements.
Frequently asked questions
Hard drive not detected? Do not initialise or format it.
Why has my hard drive suddenly disappeared?
Possible causes range from cables and power through electronics and firmware to mechanical or logical damage.
Should I initialise the drive?
No. Initialisation changes structures on the medium and should not be confirmed when the data is needed.
Could another USB enclosure help?
A faulty enclosure may be the cause with an intact, quiet drive. After a fall, clicking or dropouts, do not perform further tests.
Are the data gone if Windows shows no drive?
Not necessarily. A missing display does not establish whether storage areas can be technically read and reconstructed.
Can I ship from across Germany?
Yes. Register the case first to receive a case number and information about safe shipment.
Switch off and have the case assessed.
Describe the damage for initial guidance and the appropriate handover route.