Hard Drive
Data Recovery
We recover your important data from all types of hard drives, safely handled in our British Columbia lab.
We Recover Data From All Types of Hard Drives
From single internal drives to multi-disk RAID arrays, our BC lab handles every kind of hard drive failure.
Internal HDDs
SATA, IDE, SCSI and enterprise drives.
External Hard Drives
Portable and desktop external drives of all brands.
Laptop Hard Drives
2.5-inch laptop drives and ultra-thin models.
RAID & NAS Drives
RAID 0/1/5/6/10 and NAS storage systems.
Failed & Damaged Drives
Not detected, clicking, beeping or physical damage.
Hard Drive Problems and What They Mean
Hard drives fail in different ways, and the symptoms often point to the underlying cause. Here is a plain-English guide to the most common failures we see in our BC lab, and what each one usually means for your data.
Bad (Degraded) Heads
How it behaves: The drive spins up but is slow to respond, reads only part of the disk, freezes, or disappears after a few minutes of use.
What it means: The read/write heads that hover over the platters have weakened or partially failed. A drive can have several heads, and losing even one means a portion of your data can no longer be read until the head stack is replaced.
Bad Heads (Head Crash)
How it behaves: Clicking, buzzing, or beeping on power-up. The drive is not detected, or shows up with the wrong capacity.
What it means: One or more heads have failed completely. This requires a head-stack replacement in a cleanroom. Continuing to power the drive risks scratching the platters and causing permanent loss.
Stuck or Glued Heads
How it behaves: A faint whirring with no spin-up, or the motor strains and stops. Often follows a drop or impact.
What it means: The heads have come to rest on, or stuck to, the platter surface instead of parking correctly. The drive cannot spin freely. Freeing the heads safely requires opening the drive in a cleanroom, never at home.
Seized or Failing Motor
How it behaves: No spin at all, a low hum, or a repeated attempt to start and stop. The drive feels "dead."
What it means: The spindle motor that turns the platters has seized or worn out, often after a drop or age. Recovery usually involves transplanting the platters into a matching donor drive, a delicate cleanroom procedure.
Bad PCB (Circuit Board)
How it behaves: Completely dead, not detected, sometimes a faint burning smell or visible scorch mark after a power surge.
What it means: The control board on the underside of the drive has failed, frequently due to a power surge or faulty power supply. The board often needs repair or replacement, with adapted firmware data moved across, since each board is matched to its specific drive.
Firmware Corruption
How it behaves: The drive is detected but shows 0 bytes, the wrong model name, or hangs the computer. It may be recognized in BIOS but never becomes accessible.
What it means: The drive's internal firmware (the software the drive uses to manage itself) has become corrupted. The hardware may be fine, but specialized tools are needed to repair the firmware modules before the data can be read.
Bad Sectors
How it behaves: The drive works but is slow, freezes when opening certain files, or some files are corrupt or unreadable while others open fine.
What it means: Small regions of the platter can no longer reliably hold data. A few bad sectors are normal over time, but a growing number signals the drive is degrading and should be imaged and replaced before it gets worse.
Scratched or Damaged Platters
How it behaves: Loud grinding or scraping, repeated clicking, or a drive that was opened or run for too long after a head failure.
What it means: The platter surface that stores your data has been physically scored, often by a failed head dragging across it. This is among the hardest failures to recover and is exactly why a clicking drive should be powered off immediately, before the damage spreads.
SMART Warnings & Reallocated Sectors
How it behaves: Your computer warns that the drive may fail, backup software reports errors, or the drive is noticeably slower than it used to be.
What it means: The drive’s own health monitoring (SMART) is flagging a rising count of reallocated or pending sectors. The drive is still working but is actively failing. This is the ideal time to image it and recover the data, before a minor issue becomes a total loss.
Corrupted File System or Partition
How it behaves: The drive is detected but asks to be formatted, shows as "RAW," or the partition is missing entirely. Files and folders may appear scrambled.
What it means: The map the operating system uses to find your files has been damaged, often by an improper shutdown, a failed update, or a virus. The data is usually still present and recoverable as long as the drive is not formatted or written to.
Accidental Deletion or Format
How it behaves: Files or partitions vanish after an accidental delete, a reinstall, or a format. The drive itself works normally.
What it means: The data is marked as removed but typically remains on the platters until overwritten. The single most important step is to stop using the drive immediately, because every new write reduces what can be recovered.
Common Hard Drive Problems We Solve
- Drive not detected by computer or BIOS
- Clicking, beeping or unusual noises
- Drive spins but won't read files
- File system errors or corrupted partitions
- Accidental deletion or formatting
- Physical damage from drops, power surges or water
Why Choose TeraDrive?
Canadian Laboratory
Secure cleanroom environment in British Columbia for trusted, careful handling.
No Data, No Fee
You only pay if we successfully recover your data.
Certified Specialists
Certified recovery specialists using advanced diagnostics and industry-leading tools.
Secure & Confidential
Your data is handled with the highest level of security and privacy.
Thousands of Success Stories
Trusted by individuals and businesses across Canada.
Our Simple 5-Step Recovery Process
From first contact to recovered files, here is how it works.
Contact Us
Talk with a recovery advisor and get a free quote.
Drop Off or Ship
Bring it to a BC location or ship it to our lab.
Free Evaluation
Our specialists perform a no-cost evaluation.
Approve Recovery
We recover your data only once you give the OK.
Get Your Data Back
Securely returned via download or on a drive.
Not Sure If We Can Recover Your Data?
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Hard Drive Recovery Resources
Lab-tested guides on failing hard drives, what the warning signs mean, and what to do before the damage gets worse.
Hard Drive Making Noise? What the Sounds Mean
Read article Mechanical FailureHard Drive Click of Death: What to Do
Read article Data RecoveryHow to Save Files from a Broken Hard Drive
Read article External DrivesWhat to Do If Your External Hard Drive Stops Working
Read article RAID & NASWhat To Do When Your RAID System Fails
Read article Laptop DrivesRecovering Data from an Old Laptop Hard Drive
Read articleHard Drive Recovery Across British Columbia
We provide professional hard drive data recovery for clients throughout British Columbia, with convenient drop-off locations in Vancouver, Burnaby, and our main lab in Langley. You can also ship your drive to our lab from anywhere in Canada.