Logical data loss
- Files or folders accidentally deleted
- Shift+Delete or emptying the Recycle Bin
- Formatted disk or partition
- Deleted or corrupted partition table
- RAW file system and access errors
- Windows won't start, but the disk is detected.
Beylikdüzü data recovery The service includes identifying the type of failure and evaluating the appropriate data extraction method in cases such as accidentally deleted files, data loss after formatting, RAW file systems, corrupted disk partitions, computers that won't boot Windows, inaccessible external drives, and undetected SSD/HDDs .
If data loss is noticed, do not write new files to the disk, do not format or initiate a Windows installation, do not install recovery software on the same disk , and do not repeatedly run the HDD that is making abnormal noises. Each new write and unnecessary operation attempt can affect the recoverable space.
If the disk is stably detected by the operating system but files are inaccessible, a logical problem may be suspected. If the disk makes abnormal noises, disconnects, or is not detected at all, a physical, electronic, or firmware-related failure should be considered.
The goal is to determine the data state by performing as few operations as possible on the source disk , identify priority files, and, where appropriate, continue the work on the copy or image.
The type of SSD, HDD, external hard drive, or USB memory stick is monitored; information about deletion, formatting, impact, liquid contact, sound, and recent operations is also collected.
Detection, capacity, connection stability, abnormal noise, temperature, and SMART alerts are monitored within the supported scope.
The folders to be recovered first, file types, user account, BitLocker status, and recovery key status are clarified.
If the source disk is unstable, instead of directly scanning the file system extensively, transferring readable sectors to the target disk is considered.
The partition table, file system, folder structure, and raw file signatures are examined according to the type of data loss.
No data is written to the source disk. File listing and openability checks are performed on a separate target, to the extent possible.
Deleting a file often doesn't mean the contents are instantly and physically destroyed. However, the file space becomes available for new data, and subsequent use changes the outcome.
Installing new programs, downloading files, performing updates, or continuing to use the system may overwrite the old data area.
NTFS, exFAT, FAT32, and other file systems may handle deleted records differently.
If a large file is spread across different sectors, finding all the pieces and assembling them in the correct order can be difficult.
Even if the content can be found, the original file name, date, or folder structure may not always be preserved.
The TRIM command can cause the deleted blocks to be cleared by the controller , severely reducing their recoverability.
The possibility of recovery depends on the method of erasure, disk type, encryption, and subsequent write operations.
Quick formatting can recreate file system records , but it may not instantly reset all data blocks. Subsequent Windows installations or file writing may overwrite the old data.
The file system structure is renewable; some of the old content may remain in physical space until data is written over it.
System files, updates, drivers, and user profiles can overwrite old data areas, which can reduce the recovery success rate.
Even if the partition table is lost, the data structure can still be found on disk. Creating or formatting a new partition requires additional changes.
Rebuilding with NTFS, exFAT, or another file system may modify some of the old metadata structure.
If the folder structure cannot be found, a raw scan based on file signatures may be necessary; results may come from unnamed or mixed folders.
When formatting is detected, shutting down the system and stopping writing to the disk helps to preserve potential data areas.
The operating system may recognize the partition as RAW, be unable to assign a drive letter , or display an access denied error. In this case, formatting should not be performed directly.
If the file system structure cannot be read, Windows may display the partition as RAW.
Even if the disk capacity is visible, the partition start and end information may be missing.
If the NTFS master file table or backup records are corrupted, access to the folder structure may be lost.
A symptom that appears to be a file system error may also be caused by a physical sector read problem.
Mechanical HDDs contain rotating platters and moving read-write heads . In the event of a physical failure, each attempt at operation can affect the surface and head condition.
The head's reference search, servo reading problem, or firmware startup issue can cause repetitive clicking.
The disc should be turned off and not restarted. Contact with the platter surface could cause further damage.
as motor, electronic circuit board, power connection, or internal mechanical jams are assessed.
Aside from the cable and enclosure, a weak connector, a faulty sector, or a power or controller issue can also cause the connection to be lost.
Firmware translation table, service area, or electronic problems can prevent the disk's true capacity from being read.
For malfunctions requiring intervention on the head, motor, or internal mechanics, controlled laboratory conditions may be necessary; standard workshop opening procedures should not be applied.
SSDs have no moving parts. Data is stored in NAND memory; the controller, firmware, translation table, encryption, and TRIM behavior directly affect data access.
The SSD may not appear in the BIOS, may display an incorrect capacity, or may be detected briefly and then disconnected.
Reading errors, critical health alerts, and switching to read-only mode may be related to the state of memory cells.
the mapping of logical addresses to physical NAND areas is disrupted, disk capacity or file structure may become inaccessible.
Clearing deleted blocks in the background can reduce the likelihood of recovering deleted files.
In some SSDs, data is encrypted via the controller. Simply reading the NAND chips may not produce meaningful data.
In modern ultrabooks and some Apple devices, storage is integrated into the motherboard; data access may depend on how the device is operating.
The external enclosure's USB-SATA converter, cable, USB port, or power adapter may be faulty. However, if abnormal sound or connection drops, simply replacing the enclosure and repeatedly trying again should not be the only solution.
Connection behavior can be compared in a controlled manner using different robust cables and suitable USB ports .
If the USB-SATA bridge card is faulty, the disk inside may not be recognized by the computer even if it is healthy .
With 3.5-inch external hard drives, an inadequate or faulty adapter can prevent the drive from spinning and being detected stably.
If the enclosure and cable are intact, the mechanical fault of the HDD or SSD will be assessed.
The goal with unstable or faulty disks is to transfer readable data to another target with as few repetitions as possible. File system analysis can then be continued on the copy.
Instead of repeatedly reading the same regions, an error-handled transfer approach can reduce unnecessary disk work.
If appropriate, readable sectors of the disk are transferred to an equal or larger target; corrupted areas can be recorded.
If the disk is rapidly degrading, important file system regions or user-specified data areas can be prioritized.
The recovered files are not written to the faulty source disk; a different target storage device with sufficient capacity is used.
Unreadable, encrypted, or overwritten areas may also be missing from the copy.
Partition repair, file system scanning, and file signature searching are performed on the image rather than the source whenever possible.
Even with BitLocker or device encryption enabled, reading raw sectors doesn't automatically mean files can be viewed directly. Contents may be undecryptable without a valid key or user authentication.
A Microsoft account can be a work account, a printed document, or registered within an organization's management system.
If the switch is connected to the TPM, a motherboard or BIOS change can trigger the recovery screen.
Even if the disk is physically readable, unlocking the encrypted volume requires the correct key and intact metadata.
Your user account password and your BitLocker recovery key are not the same thing.
The key can be stored in the company's IT department, in an Entra ID/Active Directory account , or in the device management system.
can prevent file access even if the storage is physically healthy .
While the motherboard, screen, or Windows startup problem might be the issue, the storage unit could be healthy. First, the disk's structure, encryption, and whether it's integrated with the device are determined.
A healthy, unencrypted disk can be read independently with a suitable adapter or testing system.
User folders can be accessed from a different environment before the operating system starts.
If the storage unit cannot be removed, the device may need to be temporarily or permanently made operational.
Windows file permissions can generate access warnings on different systems; this should not be confused with encryption.
If device encryption is automatically enabled, the recovery key can be found in your Microsoft account.
Windows installation or disk formatting without securing important files .
The file name and size may be found, but the content may be incomplete, overwritten , or corrupted. The openability of the recovered data is assessed by sampling and integrity checks based on the file type.
Photographs, documents, videos, or archive files are opened and checked using appropriate programs.
Zero bytes, unexpectedly small size, or missing blocks can be an indication of a corrupted file.
If metadata is preserved, the original folders and names can be found; in raw scans, files can be separated by type.
The recovered data is copied to a different, healthy target storage device with sufficient capacity than the source disk.
Data recovery may require technical access to file contents. Priority folders, encryption key, and scope of delivery must be clearly defined upon device acceptance.
Documents, photos, accounting files, projects, or specific date ranges are listed in order of priority.
This setting is only provided by the user when necessary; the user may be offered a change after the process is complete.
An external hard drive or SSD suitable for the amount of data to be recovered can be provided or specified by the user.
It may not be possible to open all of the numerous files individually; samples of the most important file types will be used.
Once the process is complete, the source disk and the recovered data are delivered to the user according to the delivery terms.
Encrypted fields that have been overwritten, are physically unreadable, or for which the key cannot be found may not be recoverable.
The table below is not a definitive solution. It shows the initial check to be performed and the action to be avoided, depending on the symptom.
Scanning for deleted files and repairing a physically faulty HDD or undetected SSD do not require the same equipment, time, or processing level. Pricing is determined by the storage type, capacity, failure level, and the method to be applied.
The type of storage device—HDD, SATA, SSD, NVMe, external hard drive, or integrated storage— affects the processing method and duration.
File system analysis is not the same as electronic, firmware, or mechanical intervention.
On faulty or slow-reading disks, sector-based data transfer may take a long time and may be interrupted depending on the disk behavior.
Millions of small files, large archives, or corrupted video structures can affect the verification process.
Situations requiring special conditions, such as internal mechanical HDD repair, may necessitate separate evaluation and incur additional costs.
No percentage or file quantity promises can be made without a review; disk readability determines the outcome.
KTeknik Servis, at its Paradise AVM service point in Adnan Kahveci Mahallesi, performs data recovery scans for SSDs, HDDs, external hard drives, and devices that won't boot from Windows. The type and capacity of the drive, recent events, abnormal noise, encryption status, and priority files must be specified before the process begins.
Adnan Kahveci Neighborhood, Yavuz Sultan Selim Boulevard, Paradise AVM No:16, Shop:10, Beylikdüzü / Istanbul
No. The result depends on the disk type, TRIM, encryption, erasing method, and how much new data is written to the disk after erasing.
In some cases, it may be possible. New Windows installations, file copying, and formatting all affect the recoverable space.
On SSDs, TRIM and background cleanup operations can quickly render deleted blocks inaccessible. No definitive results can be given without an investigation.
The disk should be turned off and not repeatedly turned on. Software scans or surface tests should not be performed in the event of a possible mechanical failure.
No, if there is important data. Formatting can change the file system structure; disk health and data status should be checked first.
This is possible if the storage unit is healthy and accessible. BitLocker affects integrated storage and disk failure methods.
, accessing the file contents may not be possible without the correct recovery key .
No. To avoid overwriting the source disk, the recovered files are transferred to a different target storage device with sufficient capacity.
The duration varies depending on capacity, read speed, amount of corrupted space, type of failure, image acquisition, and file verification needs.
With a very large number of files, it may not be possible to open each file individually . Sampling is done using priority folders and important file types .
This page focuses on data loss and disk readability. Issues related to new disks, Windows, BIOS, and power are covered in separate technical pages.
the type and capacity of your SSD, HDD, or external hard drive; any signs of deletion, formatting, impact, abnormal noise, disconnection, or disappearance; BitLocker status; and your most important folders via WhatsApp . Detailed information regarding the process and cost will be shared after assessing the severity of the problem.
Paradise AVM No:16 Shop:10 — Adnan Kahveci Neighborhood, Beylikdüzü / Istanbul
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