Your hard drive is clicking. Do these four things right now.

Why clicking is serious

A healthy drive is nearly silent. Clicking usually means the read head is failing to find its position and repeatedly resetting, and every retry risks the head physically contacting the platters where your data lives. Once platters are scratched, no software on earth recovers those files.

This is the one computer problem where trying things makes it worse. The goal right now is not to fix the drive; it is to stop the damage.

The four steps

1. 1Power it off. Shut down the computer, or unplug the external drive. Do not restart it to check if it still clicks. Every power-on is another chance for head contact.
2. 2Do not run repair tools. CHKDSK, First Aid, and defragmenters force the failing drive to work hard across its whole surface. On a mechanically failing drive they finish the destruction.
3. 3Do not open the drive. Platters are damaged by dust particles smaller than you can see. Opening a drive outside a cleanroom generally ends recovery options.
4. 4Write down what matters. Make a short list of the folders you most need back: photos, documents, tax records. Prioritized recovery gets the important files first while the drive still cooperates.

What recovery actually looks like

If the drive still responds, a technician can often image it onsite, reading each sector once, gently, onto a healthy drive, and recover files from the copy. If the failure is mechanical, the honest answer is a cleanroom lab, which costs more, and we will tell you that before you spend money on a visit.

Either way, the drive should stay powered off until someone who does this regularly looks at it.

The part everyone skips

After the scare, set up automatic backup. One local copy, one cloud copy, running without you remembering. The next drive failure should be an inconvenience, not an emergency.