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What to do if…
your hard drive starts clicking and your files become inaccessible

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy UK guide

Short answer

Stop using the drive. If the clicking is persistent or repeating and the files are inaccessible, shut the computer down or safely eject and disconnect an external drive, then keep the drive powered off while you check for another copy of the files or seek specialist advice.

Do not do these things

  • Do not keep restarting the computer or repeatedly reconnecting the drive.
  • Do not format, initialise, erase or repartition the drive, even if prompted.
  • Do not run repair, diagnostic or recovery software while the drive is making abnormal clicking sounds if the files are important and not backed up.
  • Do not install software, download files or save new data onto the affected drive.
  • Do not tap, shake, drop, freeze or heat the drive.
  • Do not open the sealed hard-drive casing.
  • Do not power the drive on again only to test it or record the noise.

What to do now

  1. Stop trying to open or copy files from the drive. If it is inside the computer and the computer responds, use the normal shut-down command.
  2. If it is an external drive and the computer responds, use the operating system’s eject function. If it will not eject, shut the computer down before disconnecting the drive.
  3. Leave the drive disconnected and powered off. Persistent hard clicking or repeating clunking can indicate a physical problem, particularly when files have become inaccessible.
  4. On another device, check cloud storage, backups, synced folders, email attachments, other computers, USB devices and shared work systems for copies of the missing files.
  5. Write down the drive’s make and model, whether it is internal or external, any error messages already shown, when the clicking began, and whether the drive was recently dropped, moved or exposed to liquid.
  6. If the missing files are irreplaceable or this is their only copy, contact a specialist data-recovery provider before carrying out further tests. State clearly that the drive is clicking and the files are inaccessible.
  7. If you have confirmed that a complete usable backup exists, contact the manufacturer, retailer or your usual IT support about testing, replacement and any available warranty route.
  8. If the drive belongs to an employer, school or another organisation, contact its IT team before removing hardware or sending the drive to an outside provider.

What can wait

You do not need to identify the exact fault, reinstall the operating system, choose a replacement drive, organise the missing files or try every diagnostic tool now. First keep the drive inactive and establish whether another copy of the files exists.

Important reassurance

Some hard-drive clicks can occur during normal operation, but persistent or repeating clicking together with inaccessible files is a reason to act cautiously. Stopping use cannot guarantee recovery, but it avoids unnecessary activity before the drive is assessed.

Scope note

This guide covers immediate steps intended to reduce avoidable data loss. Later decisions about diagnostics, recovery attempts, replacement, warranty claims and future backups may require specialist IT or data-recovery help.

Important note

This is general information, not professional IT or data-recovery advice. Follow your organisation’s instructions if the drive contains work, confidential or personal data.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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