How to Recover Data from a Crashed Hard Drive (2025 Guide)
2025-03-27 16:19:43 来源：华军科技数据恢复
How to Recover Data from a Crashed Hard Drive (2025 Guide)
Recover data from logically or physically failed hard disks with step-by-step solutions
Types of Hard Drive Crashes
Logical Crash: Corrupted file system, OS failure, bad sectors.
Mechanical Failure: Clicking sound, motor failure, head crash.
PCB/Electronic Failure: No power, short circuit on board.
Firmware Corruption: Drive not recognized or misidentified.
Recovery Flowchart for Crashed Hard Drives
```mermaid
graph TD
A[Drive is not working or clicking] --> B{Is it recognized by BIOS?}
B -- No --> C[Check power & PCB → Use donor PCB if needed]
B -- Yes --> D{Is it accessible in Disk Management?}
D -- No --> E[Use imaging tools → Attempt logical extraction]
D -- Yes --> F[Use recovery software to scan and retrieve files]
```Steps to Recover Data Safely
🔌 Disconnect and stop using the drive to avoid overwriting.
💾 Create a sector-by-sector image using tools like HDDSuperClone.
🛠️ Scan the image using software like R-Studio or UFS Explorer.
🧰 If clicking or power issues, consult a lab for head or PCB swap.
💡 Avoid running CHKDSK—it may damage data in crashed drives.
Case Study: Seagate Drive with Head Crash
A client reported clicking sounds and BIOS not detecting the drive. After diagnosing head failure, we replaced the head in a clean room and imaged the disk using PC-3000. 93% of files including documents and photos were recovered successfully.
Frequently Asked Questions
Can I recover data from a physically crashed drive at home?
No, it requires cleanroom tools and matching donor parts. DIY attempts may make recovery impossible.
What is the success rate of recovery?
Depends on damage type. Logical crashes have >90% success, physical crashes vary by severity.
How much does professional recovery cost?
Logical: $100–300. Physical (head/PCB): $500–1500 depending on part availability.
Need Expert Help?
Huajun Tech Data Recovery Center — Specialists in hard disk, SSD, RAID, NAS crash recovery
📞 Hotline: +86-400-675-9388
🌐 Visit: www.sosit.com.cn