External hard drive clicking, beeping or not spinning up? What to check, and when to stop
The drive makes a click... whirr... click every few seconds, or a high-pitched beep, and the computer either doesn't see it or freezes when it tries. What you do next can decide whether the files survive.
What the sound usually means
| Sound | Likely cause | Next step |
|---|---|---|
| Soft ticking while reading or writing, otherwise quiet | Normal: the heads moving across the disk | Nothing to do. |
| A single click a few seconds after it goes idle | Normal: the heads parking to save power | Nothing to do. |
| Spin-up, click, spin-down, repeating | Not enough power (weak port, hub, long or thin cable), or failing heads | Try a direct rear port and a short cable. If it continues, stop. |
| Steady click-click-click, drive not detected | Heads damaged or can't read the drive's own setup data, the so-called click of death | Stop powering it. Professional recovery if the files matter. |
| Beeping or buzzing, no spin | The motor can't turn the disks, often because the heads have stuck to the surface after a drop, or the power is far too low | Check power once. If it still beeps, stop. |
| Grinding or scraping | The heads are touching the disk surface | Unplug immediately. Every second makes it worse. |
Rule out power and the cable (two minutes)
- Plug into a port on the computer itself, ideally on the back of a desktop. Hubs, keyboards, monitors and front ports often can't supply enough current to spin a portable drive up.
- Use a different, short cable. Portable drives draw the most power while spinning up, and a worn or thin cable can drop just enough voltage to make the drive retry over and over.
- Larger desktop drives have a power adapter. Check it's in the wall and the light is on. A failed adapter makes the drive beep or stay silent.
- Try a different computer. A laptop on battery saver or an old USB 2 port may supply less power.
- Don't tap, shake, freeze or open the drive. Old tricks like the freezer make damage worse, and opening it outside a clean room puts dust on the disks.
If it shows up: check its health, then copy
- Windows: the free CrystalDiskInfo reads the drive's own health log (SMART). "Caution" or "Bad", or a rising count of reallocated or pending sectors, means it's failing.
- Mac or Linux: smartmontools gives the same report:
smartctl -a /dev/disk4on a Mac orsudo smartctl -a /dev/sdbon Linux. Many USB cases need-d satadded. Some cases block health data entirely. - Copy the most important files first, a folder at a time, rather than everything at once. A failing drive may only have a few hours left.
- Don't run a full scan, chkdsk /r, First Aid repeatedly or a defragment on a drive that's clicking. They read or rewrite every part of the disk and can finish it off.
- For a whole drive, the free
ddrescuetool (Linux, or Mac via Homebrew) copies the readable parts first and retries the bad areas last, onto a healthy drive at least as big.
If it doesn't show up and the files matter
Stop powering it on. Every attempt with damaged heads can scratch the surface where your data lives. Professional data recovery companies replace the heads in a clean room and are often successful, but the cost is usually in the hundreds, so get a quote first, and look for "no data, no fee" pricing. If the files don't matter, the drive is finished: wipe or destroy it and recycle it.
Next time
A single external drive is a single copy. Keep at least one other copy of anything you'd miss, ideally one in the cloud or somewhere else entirely, and replace portable hard drives that start reporting SMART warnings.
Related
Other computer noises explained · SMART report explainer: paste your drive's health readings · Reallocated vs pending sectors · "You need to format the disk" (RAW drive) · Wipe a drive before giving it away · What SMART health numbers mean (Wirebook) · USB stick or external drive not showing up · External drive copying slowly · "This device can perform faster" · Back up phone photos to an external drive · Time Machine slow or stuck · Interactive: read a drive's health chart (Wirebook)
Questions
Why is my external hard drive clicking?
Most often it isn't getting enough power from the port, hub or cable, so it keeps trying to spin up. If it still clicks on a direct port with a good short cable, the read heads are probably failing.
Why is my external hard drive beeping?
Usually the motor can't spin the disks, because power is far too low or the heads have stuck to the disk after a knock. Try a direct port and the right power adapter once; if it still beeps, stop powering it.
Can I recover data from a clicking hard drive?
Often, yes, if you stop using it. If it still mounts, copy the most important files off first. If it isn't detected, a professional recovery service can usually help, but it isn't cheap.
Should I put a clicking hard drive in the freezer?
No. It can cause condensation on the disks and makes professional recovery harder. Don't tap, shake or open it either.
Is a little clicking from a hard drive normal?
Yes. Soft ticking during use and a single click when it goes idle are normal head movements. A repeating click with the drive not working is not.
Published · updated .