What to do if…
your external hard drive will not mount and you need to save your files

What to do now

1. Stop writes immediately. If you can safely eject the drive, do that once. Then unplug it. If it has its own power supply, turn it off.

2. Capture what happened. Take a photo or screenshot of any error message, such as Format, Initialize Disk, Not initialized, RAW, Unallocated, unreadable, or cannot be mounted. Write down whether the drive spins normally, stays silent, clicks, grinds, beeps, or starts and stops.

3. Do one low-risk connection check only. Try a different USB port, a different cable, and, for a desktop-style external drive, the correct power adapter and a different wall outlet. If the drive still does not appear normally, stop cycling it.

4. Check whether the computer can see the device without changing it.

   • Windows: open Disk Management and look only at whether the disk appears and what status it shows. Do not initialize, format, convert, mark active, create a new volume, or run repair.
   • Mac: open Disk Utility and use View, Show All Devices if needed. Look only at whether the device appears in the sidebar. Do not erase, initialize, restore, partition, or run First Aid while the files are the priority.

5. If files are accessible, copy the most irreplaceable ones first. Copy, do not move, the smallest critical folders to a different drive or trusted cloud storage. Start with documents, photos, school files, work files, or records you cannot replace. If errors increase, the drive slows badly, or the drive starts making abnormal sounds, stop.

6. If the drive appears as RAW, Unallocated, Unknown, Not initialized, or visible but not mountable, pause before using recovery software. Software may help in some logical failures, but it can also stress a failing drive or write recovered files to the wrong place if used carelessly. Never save recovered files back onto the problem drive.

7. If the drive clicks, grinds, beeps, was dropped, got wet, smells burnt, or repeatedly spins up and down, keep it powered off and consider a reputable data recovery service early. These signs may point to physical failure, and repeated home attempts can reduce the chance of recovery.

8. If the drive is under warranty or recently bought, separate replacing the device from saving the data. Read the written warranty and ask the seller or manufacturer, in writing, whether service or return will involve replacement, refurbishment, wiping, or loss of access to the original drive. If the data matters, do not send it away until you have recovered what you can or accepted that the data may be lost.

9. If a seller or manufacturer is unhelpful about a defective device or warranty issue, keep the data question separate. Save receipts, warranty terms, serial numbers, photos, and messages. Contact the seller or manufacturer in writing with the problem and the resolution you want, then use FTC consumer guidance if you need to structure a complaint.