hard drive data recovery in san jose & the bay area
dead, clicking, damaged, not detected & external hard drive recovery
Documents, photos, videos, databases, business files, project data, and personal archives may still be recoverable when a hard drive is clicking, dropped, damaged, not detected, reformatted, corrupted, or no longer mounting.
With 26+ years of experience, Kotar Data Recovery provides professional hard drive recovery for clients in San Jose and across the Bay Area. We recover data from internal and external hard drives used in desktop computers, laptops, workstations, NAS systems, servers, backup devices, and enterprise storage.
Free secure courier pickup is available across the Bay Area. You can also request a free shipping label or visit our San Jose lab by appointment.
Your drive is examined within 2 hours after it arrives at our San Jose lab, and we provide the recovery options and a fixed quote before any work begins.
why data can still be recoverable after a hard drive fails
A hard drive can stop working because of failed read/write heads, motor problems, firmware corruption, damaged electronics, bad sectors, file-system damage, accidental formatting, or other physical and logical failures.
Even when a drive will not mount, is not detected, makes clicking or buzzing sounds, or contains inaccessible files, recoverable data may still remain on the platters.
For unstable or physically damaged drives, our San Jose lab uses specialized recovery tools and cleanroom capability to protect the original media, address failed components as needed, and create the safest available recovery copy before file reconstruction begins.
hard drives and storage types we recover
Internal hard drives used in desktop computers, laptops, workstations, servers, and specialized systems
External hard drives used for backups, photographs, videos, documents, Time Machine, Windows File History, archives, and portable storage
Desktop and laptop HDDs using SATA and legacy storage interfaces
Enterprise hard drives using SATA, SAS, and other server-class storage configurations
NAS and server hard drives affected by individual drive failure, bad sectors, firmware problems, or physical damage
High-capacity hard drives including modern enterprise and helium-filled HDDs
Common hard drive manufacturers including Seagate, Western Digital, Toshiba, Hitachi, HGST, Samsung, and other supported HDD models
Encrypted hard drives including BitLocker, FileVault, and other encrypted volumes when the required password, recovery key, or credentials are available
common hard drive failures we recover from
Clicking or repeated head-seek sounds caused by damaged read/write heads, media problems, or internal mechanical failure
Buzzing or failure to spin caused by motor problems, seized components, damaged heads, or electronic failure
Hard drive not detected by Windows, macOS, BIOS, Disk Utility, a server, or an external enclosure
Bad sectors and unstable reads causing freezing, slow access, repeated errors, corrupted files, or incomplete copies
Firmware corruption causing incorrect identification, unstable behavior, detection problems, or loss of access
PCB or electronic failure causing no power, intermittent operation, or failure to communicate with the computer
File-system or partition corruption where the drive appears but files, folders, or volumes cannot be accessed normally
Dropped or physically damaged hard drive with clicking, grinding, no detection, or other symptoms after impact
Deleted or reformatted hard drive where files, folders, partitions, or volumes were removed accidentally
Encrypted hard drive failure where recovery requires both accessible storage and the appropriate encryption credentials
dead hard drive recovery
A hard drive may appear dead when it does not spin, does not power on, clicks repeatedly, is not recognized, or produces no usable response when connected.
The cause may involve read/write heads, the spindle motor, PCB electronics, firmware, damaged sectors, internal components, or another storage failure.
Our San Jose data recovery lab evaluates the drive before recovery work begins and determines the safest available method for accessing the storage while minimizing unnecessary stress on the original media.
clicking hard drive recovery
A clicking hard drive often indicates that the read/write heads cannot safely access the platters or complete normal positioning.
This can happen after a drop, impact, power event, head failure, media damage, or another internal mechanical problem.
If a hard drive is clicking, beeping, repeatedly spinning up and down, or making unusual mechanical sounds, power it off immediately.
Do not run recovery software, diagnostic scans, CHKDSK, Disk Utility repair, or repeated power cycles on a mechanically failing drive.
external hard drive recovery
We recover data from external hard drives used for backups, photographs, videos, business files, project storage, Time Machine, Windows File History, archives, and general storage.
Common failures include dropped drives, damaged USB connectors, enclosure problems, power issues, clicking sounds, unreadable partitions, accidental formatting, file-system corruption, bad sectors, and external drives that no longer mount or remain connected.
If the external enclosure is the only failed component, the internal hard drive may still be accessible. If the drive itself is unstable or physically damaged, continued use can increase the risk of additional damage.
hard drive not detected
If a hard drive is not detected by Windows, macOS, BIOS, Disk Utility, a server, NAS system, or external enclosure, do not initialize, erase, partition, or format it.
Detection problems can result from firmware failure, damaged heads, PCB problems, bad sectors, file-system corruption, damaged interfaces, enclosure failure, or other hardware problems.
Our engineers evaluate the original drive first and determine the safest available method for creating a recovery copy before reconstructing accessible files.
signs of a failing hard drive
Clicking, grinding, buzzing, or repeated spin-up sounds
Drive does not spin or power on normally
Frequent computer crashes or freezes
Very slow file access or transfers
Corrupted, disappearing, or inaccessible files
SMART warnings or increasing bad-sector errors
Drive is not detected
Computer no longer boots from the drive
External hard drive does not mount
Repeated disconnections or read errors
Operating system asks to initialize or format the drive
Incorrect capacity or unusual drive identification
what you should do and not do
Stop using the drive immediately when important files become inaccessible or the drive begins showing signs of failure
Power off a clicking, grinding, or buzzing drive rather than repeatedly restarting it
Do not initialize, erase, partition, or format the drive if your computer asks you to
Do not run CHKDSK, fsck, Disk Utility repair, or repeated recovery scans on a physically unstable hard drive
Do not repeatedly power-cycle a failing drive because additional operation can increase mechanical or media damage
Do not open the hard drive yourself because internal HDD components require an appropriate controlled environment
Keep the drive protected from shock and static electricity while transporting or shipping it
Gather your password or recovery key if the drive or volume is encrypted
our 3-step hard drive recovery process
Free evaluation and fixed quote - the hard drive is examined within 2 hours after it arrives at our San Jose lab, and the recovery options and a fixed quote are provided before work begins
Safe imaging and recovery - the original drive is protected and the safest available recovery method is used based on the condition of the heads, platters, firmware, electronics, bad sectors, and other failure characteristics
File reconstruction and verification - accessible files, folders, partitions, and directory structures are reconstructed and checked before delivery
how fast do you need your data back?
standard service - recovery during regular business hours
express service - completed in up to 72 hours
24/7 emergency service - round-the-clock recovery on request
why choose kotar for hard drive recovery
26+ years of hard drive recovery experience with mechanical, electronic, firmware, file-system, bad-sector, deleted-data, and physically damaged HDD cases
Professional San Jose data recovery lab serving individuals, businesses, creative professionals, legal teams, healthcare organizations, engineers, and other clients across the Bay Area
All recovery work performed in-house at our San Jose lab without outsourcing your hard drive or data to third-party companies
Cleanroom capability for physically damaged hard drives requiring internal inspection or component-level work
Specialized HDD recovery tools for clicking, unstable, damaged, firmware-affected, and not-detected hard drives
Free secure courier pickup available across the Bay Area
Free shipping label available when shipping is more convenient
Free evaluation within 2 hours after the drive arrives at our lab
No data, no fee guarantee
Fixed quote before recovery begins so you know the cost before approving the work
Secure handling for personal files, business records, legal documents, healthcare information, engineering data, financial records, photographs, videos, and confidential projects
24/7 emergency service available on request for urgent recovery cases
hard drive recovery FAQs
Can data be recovered from a clicking hard drive?
Often, yes. A clicking hard drive usually indicates a read/write head or other mechanical problem, but data may still be recoverable if the platter surfaces remain sufficiently intact. Power the drive off and avoid additional recovery attempts to reduce the risk of further damage.
Can you recover a hard drive that is not detected?
Yes, depending on the cause of the failure and the condition of the storage media. We evaluate not-detected drives for head failure, PCB problems, firmware damage, bad sectors, interface problems, file-system corruption, and other hardware or logical failures.
Can you recover data from a dropped or physically damaged hard drive?
Yes, depending on the extent of the damage. Dropped hard drives may suffer head damage, platter contact, motor problems, damaged electronics, or other mechanical failures. Physically damaged drives are evaluated to determine the safest available recovery method.
Can you recover an encrypted hard drive?
Yes, when the storage can be recovered and the required password, recovery key, or encryption credentials are available. We handle BitLocker, FileVault, and other encrypted-storage cases where the necessary credentials can be provided.
related data recovery services
For failed solid-state drives, NVMe storage, NAND problems, and SSD controller failures, visit our SSD data recovery page.
For RAID arrays, NAS systems, servers, and multi-drive storage, visit our RAID data recovery page.
For deleted, formatted, corrupted, or missing files, visit our lost file recovery page.
For MacBook, iMac, APFS, FileVault, Fusion Drive, and Time Machine failures, visit our Mac data recovery page.
For high-capacity enterprise helium drives, visit our helium HDD recovery page.
ready to get your data back?
or
call (408) 455‑4310 to speak with a data recovery expert
or
send us email at restore@kotar.us