Dropping a hard drive is one of the most common causes of physical failure, but recovery is often possible with professional help.
What Happens When You Drop a Hard Drive?
The impact can cause several types of damage:
- Head displacement: Heads shift from their parked position and crash onto platters
- Head crash: Heads contact spinning platters, creating scratches
- Motor/bearing damage: Spindle assembly gets knocked out of alignment
- Platter damage: In severe drops, platters can crack or warp
- PCB damage: Circuit board components can crack from impact
Was the Drive Running or Off?
This makes a significant difference:
- Drive was OFF: Heads are parked safely — damage is usually less severe, recovery rates higher (85-95%)
- Drive was ON: Heads were flying over platters — impact causes head crash, more platter damage (60-85% recovery)
What to Do After Dropping
- Do NOT power it on — this is the most important step
- Do NOT shake or tap it — won't fix anything, can worsen damage
- Note whether the drive was on or off when dropped
- Note the height and surface it fell onto
- Contact a professional recovery service
External vs. Internal Drives
- External drives: More commonly dropped, enclosures provide some protection
- Laptop drives: Often damaged when laptops are dropped while running
- "Rugged" drives: Better protected but not invulnerable — internal drive can still fail
Recovery Process
- Clean room assessment of damage
- Head replacement if heads are damaged or crashed
- Platter inspection for scoring or debris
- Careful imaging, working around damaged areas
- Data extraction and verification
Cost
Dropped drive recovery typically costs $500-$1,200 depending on the severity of damage. Drives that were running when dropped tend to cost more due to greater platter damage.