You plug in an old external hard drive and hear a rhythmic click, click, click. Or a computer starts making a grinding noise and freezes when you open a folder. It is an unpleasant moment, especially if the drive holds family photos.
First, take a breath. A clicking drive is a warning, but it does not always mean the data is gone. What you do in the next few minutes matters, though.
What the noise may mean
Inside a normal hard disk, a small arm moves over spinning platters to read data. Clicking, beeping, scraping or grinding can mean the drive is struggling to find its position, or that a part inside has failed or been damaged. It can also be caused by weak power (especially on bus-powered external drives), a loose cable, or a failing enclosure. We cannot tell which from a sound alone, and nobody honestly can.
What to do right now
- Switch it off. Safely eject if the computer is still responsive, otherwise unplug it. Each minute of clicking can make things worse.
- Do not turn it on again to see if it is better. Repeated attempts are one of the most common reasons data becomes harder to recover.
- Keep it still and safe. Place it in a padded bag or box, away from damp and heat.
- Note what happened. Was it dropped? Was there a power cut? How old is it? What is on it? These details help a technician.
- Think about whether another copy exists. Check old phones, the cloud, other computers, and relatives who may have received the same photos.
What not to do
- Do not keep trying it on different computers or cables repeatedly. One careful check of the cable is fine; ten attempts are not.
- Do not run repair tools or CHKDSK on it if it is making noise. Such tools stress the drive and can alter data.
- Do not format it if the computer asks you to.
- Do not put it in the freezer. This old myth can cause condensation and further damage.
- Do not shake, tap or open it. Opening a drive outside a clean environment usually makes recovery harder.
- Do not install random "recovery software" on the same drive. That could overwrite the data you want.
Is it always the drive?
Not always. Before you give up, check some simple things, gently and once:
- Is the cable firmly connected and in good condition?
- For a bus-powered external drive, try a different port directly on the computer rather than a hub.
- Is the power supply stable? Power fluctuations can cause strange behaviour.
If the clicking continues, switch it off. Do not keep experimenting.
What is realistic
It is fair to be honest about this. Some clicking drives can have much or all of their data read by a specialist with the right equipment and a clean environment. Some cannot, particularly if the surface is damaged. Recovery from physically damaged drives cannot be guaranteed by anyone, and it can be costly. Whoever you choose should tell you the risks before starting, ask before doing anything risky, and explain in writing what they will charge if the recovery does not succeed.
Learn from this: protect what you have left
If you have other old drives, now is the time to copy their contents to somewhere safe, while they still work. Follow the simple 3-2-1 idea: three copies of what matters, on two kinds of storage, with one in a different place. Our guide on preserving files from several old hard drives and our free checklist can help.
What about the drive afterwards?
Do not throw it away yet, even if you decide not to attempt recovery now. It may be worth trying later, and it may still hold personal data. See our guide on whether to throw away an old hard drive.
If you would rather not do it yourself
Recovery from a clicking drive is not a do-it-yourself job. If the data matters, you can start with our assessment or write to us with what you know. We will tell you honestly what is possible, we will stop and ask before any risky step, and we will not promise results we cannot guarantee.