Troubleshoot and repair a damaged NTFS file system


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We hope that if your NTFS file system is damaged on your system, this guide can help you.

  1. NTFS can be corrupted by unexpected deletion of system data.
  2. If the NTFS partition table is corrupted, the NTFS file system will also be corrupted.

ntfs file system damaged


What is NTFS File System error?

Cause. One possible cause of this error is damage to the hard disk. This error can be caused by damage to the NTFS file system or damage to blocks (sectors) on the hard disk. Corrupt hard disk drivers (SATA / IDE) can also affect the ability of the system to read and write to the hard drive, causing an error.


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Symptoms Of A Damaged File System (NTFS)

If the NTFS file system is damaged, when you access the NTFS partition in Windows Explorer, you will notice the following typical symptoms:

In addition, the partition may become RAW in disk management or display 0 bytes in its properties. In such cases, you lose access to this section and the data that it contains. You may be looking for effective NTFS file system recovery solutions to restore availability.

Recommended NTFS Partition Recovery Solutions

Solution 1. Check The Section For File System Errors

First, you can right-click the damaged NTFS partition in Windows Explorer and select "Properties". Then go to the “Tools” tab and in the “Error Checking” section, click “Check”. This option checks the selected partition for file system errors.

You can also use the CHKDSK utility to check for errors in the NTFS partition. Click the “Start” button, enter “cmd” in the search bar, right-click the “Command Prompt” icon and select “Run fromAdministrator’s name. ”

In the elevated command prompt window, run the command "chkdsk g: / f" (g is the drive letter of the damaged NTFS partition).

Solution 2. Recover Data From An NTFS Partition And Reformat It To NTFS

If the NTFS file system recovery methods described above do not work properly, you can first restore the data from the partition and then reformat it to NTFS. This can be a guaranteed solution. To do this, you can use the Diskpart tool to force the formatting of the damaged partition. First open a command prompt window, then run the following commands in order.

Solution 3. Apply A Professional NTFS File System Recovery Tool

If you cannot check the file system error because it has become RAW and you see the error "CHKDSK is not available for RAW players" or you cannot format it from l At the command line, you can switch to AOMEI Partition Assistant Standard.

This is a free but powerful NTFS file system recovery utility for Windows 10/8/7 / XP / Vista (64/32 bit). He canYou can scan for bad sectors on a RAW drive, format damaged partitions in NTFS, or easily repair a damaged MBR on a hard drive. Now you can download free software and try it

MBR (Master Boot Record) contains important information about organizing logical partitions, including file systems on your hard drive. Therefore, if damaged, the NTFS file system can also be damaged. Thus, you can try to recreate it to see if the NTFS partition can be restored.

Step 1. In the AOMEI Partition Assistant main interface, right-click the hard drive containing the damaged NTFS file system and select “Repair MBR”.


As you can see above, AOMEI Partition Assistant Standard is a great NTFS file system recovery tool that can be used to repair damaged NTFS file system from different points of view if the built-in Windows tools do not work. It is also an SSD recovery utility that you can use to repair corrupted / damagedSSD drives.

When upgrading to a professional version, you can perform advanced functions, such as recovering deleted partitions, expanding a system partition or converting a dynamic disk to a basic version without losing data, and much more.

User Guide: A Step-by-Step Guide To NTFS Recovery With Examples

1. Basic Concepts For Recovering NTFS Partitions

In this case, the executable code in the MBR selects the active partition and transfers control to it so that it can start downloading the necessary files (COMMAND.COM, NTLDR, ...) according to the type of file system in this section. However, if these files are missing or damaged, the operating system can no longer be started. You think about the well-known error "NTLDR is missing ..."?

In this case, the recovery program gains access to this disk, bypassing the system’s boot (for example, if you boot from another hard disk or from a bootable floppy disk), and helps to display all other files and directories on the disk and copy it to a safe place on drcorner drive.

However, if the file system itself is damaged (root, FAT area in FAT12 / FAT16 / FAT32, or MFT system entries in NTFS), the contents of the player may not be displayed, and errors such as "MFT is damaged", "Invalid disk may appear "...

In this case, you restore your data less often than if the operating system does not boot due to the absence or damage of system files. However, recovery software usually uses a few tricks to avoid displaying all entries except for some that are always safe and allow you to save your data elsewhere.

MBR Is Corrupted

A master boot record (MBR) is created when you create the first partition on your hard drive. This is a very large data structure on the hard drive.

The main boot record contains a partition table of the hard disk and a small amount of executable code to boot. Location is always the first sector on the hard drive.

The first 446 bytes (0x1BE) are the MBR itself, the next 64 bytes are the table times For the last two bytes in the sector are the signature word for the sector and always 0x55AA. We have an MBR for our hard disk structure:

When we try to start using equipment testing procedures, only a blank screen without messages is displayed. This means that the code at the beginning of the MBR could not execute correctly.

Therefore, error messages cannot be displayed. However, when we boot from a floppy disk, we see the FAT partition and the files it contains and can perform standard operations such as copying files, executing programs ...

Indeed, in our example only part of the MBR was damaged, which prevents the system from starting correctly. However, the partition table is safe, and we can access our disks if we boot from the operating system installed on another disk.

If we try to start now, an error message like "Operating system not found" will appear. If the computer does not start, you must first run the disk viewer and activate the first physical sector Hard drive, validMBR or not:

The easiest way to restore or restore MBR is to run the standard Microsoft utility called FDISK with the / MBR option, for example

FDISK is a standard utility included with MS-DOS, Windows 95, 98, ME. If you have Windows NT / 2000 / XP, you can boot from a floppy disk or CD, select the recovery option during installation, and start the recovery console. When you are logged in, you can run the FIXMBR command to restore the MBR.

You can also use third-party MBR recovery software or, if you backed up MBR, restore it from there (Active @ Partition Recovery has such functions).

If you try to read it in Disk Viewer / Editor, you will receive an error message stating that the sector is not readable. In this case, the recovery program cannot help you restore the hard drive in working condition. H. Unable to restore physical partition. The only thing that can be done is to analyze and find partitions (i.e., perform a virtual partition recovery). If something is found, display eGo and let the user save important data elsewhere. Third-party software such as Active @ File Recovery can help here.

The Partition Will Be Deleted Or The Partition Table Will Be Damaged

Information about primary partitions and extended partitions is contained in the partition table, a 64-byte data structure located in the same sector as the main boot dataset (cylinder 0, head 0, sector 1).

The partition table corresponds to the standard layout, independent of the operating system. The last two bytes of the sector are the signature word for the sector and always 0x55AA.

Each entry in the partition table is 16 bytes long, so a maximum of four entries are available. Each section entry contains fields for the boot flag (BYTE), boot header (BYTE), boot sector (6 bits), boot cylinder (10 bit), system identifier (BYTE), end header (BYTE), end sector (6 bit) . , End cylinder (10 bits), relative sector (DWORD), general sector (DWORD).

Thus, the MBR loader can take the position and size psections. The MBR loader searches for an “active” partition, that is, H. A partition with a 0x80 boot indicator (in our case the first one) and transfers control to the boot sector of the partition for subsequent loading. ,

If we try to start now, an error message like "Operating system not found" will appear. This means that the bootloader cannot determine which partition is active and which control should be transferred.

What happens if the partition is set to active (boot indicator = 0x80), but there are no system files in this partition (this can happen if, for example, we used FDISK and did not select the correct active partition)?

The bootloader tries to boot from there, crashes, tries to boot from other devices, such as a floppy disk, and



What is NTFS Recovery?

NTFS Recovery is a fully automated utility that recovers data from damaged or formatted hard drives. It has been specially designed for private users. You do not need any special knowledge about disk recovery. Run a trial version of DiskInternals NTFS Recovery. DiskInternals NTFS Recovery - Disk Recovery Wizard.

How do I fix a damaged partition?

Recovering a damaged or lost partition using EaseUS partition recovery software
  1. Step 1: Launch EaseUS Partition Recovery on your PC.
  2. Step 2: Wait for the scan to complete.
  3. Step 3: view and recover lost partitions.
  4. Step 4: Click “Restore Now” to complete the partition recovery process.


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