Read this before you do anything else
Switch it off now, and don't switch it back on.
The click is the head assembly failing to find its reference position, retracting, and trying again. A head that cannot fly properly is a head in contact with, or close to, the surface holding your files. Every power-up scrapes a little more of it away, and that damage is cumulative and permanent. A drive power-cycled forty times by a hopeful owner is a materially worse job than the same drive brought in after the first click.
Emergency
Desktop hard drive clicking
If your desktop hard drive is making a clicking noise, the most useful thing on this page is above this paragraph, and it is free. What follows is what the fault usually turns out to be, how recoverable this class of failure is, and what it would cost, including the cases we would tell you to take elsewhere.
What this usually turns out to be
A bare SATA drive has no enclosure and no bridge board, so the benign explanations available to an external are not available here. It is fed directly from the power supply and talks directly to the board. When one of these clicks steadily, the head stack is failing to find servo data, and the short list of causes is a head fault, a seized or degrading bearing, or firmware on the drive's own service area that it can no longer read.
A bare SATA drive from a desktop. No enclosure to fail means a fault here is usually the drive itself rather than the thing it was plugged into.
Head assembly failure
The heads themselves are damaged or misaligned and cannot read the servo information they navigate by. This needs the drive opened in a controlled environment.
Failing or seized spindle motor
The platters cannot reach or hold speed, so the heads never get a stable surface to read.
Servo or surface damage
The factory-written reference information the heads navigate by has been damaged, usually by earlier contact.
Underpowered or failing power supplybetter news
An external drive not getting enough current produces a convincing click that has nothing to do with the heads. The drive inside is often perfectly healthy.
Failed USB bridge board in the enclosurebetter news
The interface board between the drive and your computer has failed while the drive behind it is fine. Ordinary work, and it ends well.
What to check first on a desktop hard drive
- Move the SATA power lead to a different connector on the power supply. A marginal rail or a tired modular cable can produce a click that is not the drive's fault, and this rules it out without touching the data.
- Listen with the case side off, and confirm the noise is coming from the drive and not from a failing case fan or pump directly above it.
- Note whether the BIOS still sees the drive by model number. A drive that identifies itself and then clicks is a different job from one that never identifies at all.
What not to do
Do not put it in the freezer. That advice has outlived the drives it was written for: condensation forms on the platters as it warms, and a head meeting a droplet at speed does far more damage than the original fault. Do not run manufacturer diagnostics on it either, because a surface scan on a clicking drive is hours of exactly the contact you are trying to avoid.
How recoverable this is
Wide, and it splits early into two very different groups. A genuine head failure needs mechanical work in a cleanroom before a single byte can be read. A power or enclosure fault that merely sounds identical is routine work with a good outcome. Which one you have is the first thing an assessment settles, and it is free.
What moves it, for your device specifically:
- How many times it has been powered on since the noise started
- Whether the click is mechanical at all, or a power or enclosure fault imitating one
- Whether the platter surfaces are still intact where your files live
- Whether donor parts for that exact drive family are obtainable
We will not give you a percentage for your device, and you should be wary of anyone who does. Nobody can know what is recoverable until the media has been imaged and read. What is above describes this class of failure; your drive gets its own answer after an assessment, in writing, at no cost.
What it costs
Assessed free, then referred at no charge
Cleanroom mechanical work
Clicking, seized or head-crashed drives need internal mechanical work in a controlled environment. We don't have one, so we assess it, tell you what we found in writing, and refer it on. That referral costs you nothing here.
Nothing is charged until you have seen a fixed quote for your actual device and agreed to it, and the assessment that produces it is free.
Other faults on a desktop hard drive
Clicking on other devices
Next step
Tell us what failed.
Free assessment. Fixed quote before recovery starts. No recovery, no fee. Sydney drop-off or Australia-wide by tracked post.