How to Fix NTFS.SYS Missing or Corrupt in Windows 10

Encounter the NTFS.SYS missing or corrupt problem on Windows 10? This guide offers step-by-step solutions, software recommendations, and answers to common questions to help you resolve the issue.

Nene Aly

By Nene Aly / Updated on March 4, 2024

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If you are using Windows 10 and facing the issue of NTFS.SYS missing or corrupt, you're in the right place. This problem can prevent your computer from booting up properly and cause data loss if not addressed promptly. In this guide, we will explain in detail what the NTFS.SYS problem is, its possible causes, and provide multiple solutions to fix it. Whether you are a tech novice or an experienced user, this guide will help you resolve the issue efficiently.

The Problem: NTFS.SYS Missing or Corrupt

The NTFS.SYS file is a vital component of the Windows operating system as it helps in managing the file system and ensures the stability and integrity of the data stored on your computer's hard drive. When this file becomes missing or corrupt, your Windows 10 system may fail to start, leading to various error messages and system crashes.

The causes of NTFS.SYS missing or corrupt can vary, but here are three common reasons:

1. Corrupted File System

A corrupted file system is one of the primary causes for NTFS.SYS becoming missing or corrupt. This can occur due to abrupt system shutdowns, disk errors, virus infections, or a faulty hard drive. When the file system becomes corrupted, it can lead to issues with various system files, including NTFS.SYS.

2. Malware Infection

Malware or malicious software can also infect and corrupt essential system files, including NTFS.SYS. These infections can occur through unsafe downloads, malicious websites, infected email attachments, or compromised external storage devices. Once infected, the NTFS.SYS file can become missing or corrupt, leading to system instability.

3. Outdated Drivers

Outdated or incompatible device drivers can cause conflicts with the NTFS.SYS file and lead to its corruption or removal. This can happen when you install new hardware, update system components, or fail to keep your device drivers up to date. When the NTFS.SYS file is affected, your computer may encounter booting issues or frequent system crashes.

Solutions to Fix NTFS.SYS Missing or Corrupt

Solution 1: Run System File Checker (SFC) Scan

The System File Checker (SFC) is a built-in Windows utility that can help fix corrupted system files, including NTFS.SYS. Follow these steps to run an SFC scan:

  1. Open Command Prompt as an administrator. You can do this by searching for 'Command Prompt' in the Start menu, right-clicking it, and selecting 'Run as administrator'.
  2. Type 'sfc /scannow' (without quotes) in the Command Prompt window and press Enter.
  3. Wait for the scan to complete. This may take some time, so be patient.
  4. If any corrupted files are found, the SFC scan will attempt to repair them. Restart your computer after the process.

Solution 2: Rebuild Boot Configuration Data (BCD)

The Boot Configuration Data (BCD) contains information required to successfully boot your Windows 10 system. Rebuilding the BCD can help resolve boot issues, including NTFS.SYS missing or corrupt. Here's how:

  1. Boot your computer using a Windows 10 installation media or recovery drive.
  2. Choose the language preferences and click 'Next'.
  3. Click on 'Repair your computer' at the bottom left corner of the screen.
  4. Select 'Troubleshoot', then 'Advanced options' and finally 'Command Prompt'.
  5. In the Command Prompt window, type the following commands one by one and press Enter after each:

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

Solution 3: Perform a Startup Repair

A Startup Repair can fix many common boot issues, including problems with NTFS.SYS. Follow these steps to perform a Startup Repair:

  1. Boot your computer using a Windows 10 installation media or recovery drive.
  2. Choose the language preferences and click 'Next'.
  3. Click on 'Repair your computer' at the bottom left corner of the screen.
  4. Select 'Troubleshoot', then 'Advanced options' and finally 'Startup Repair'.
  5. Follow the on-screen instructions to complete the repair process.

Recommended Software: AOMEI Partition Assistant

AOMEI Partition Assistant is a reliable partition management software that can help you troubleshoot and fix various disk-related issues, including NTFS.SYS missing or corrupt. It offers intuitive features and a user-friendly interface. Some of its benefits include:

  • Ability to resize, move, merge, and split partitions without data loss.
  • Support for converting disk format between MBR and GPT without reinstalling Windows.
  • Clone your disk or partition to another drive for data backup or system migration.
  • Recover deleted or lost partitions and files.

To use AOMEI Partition Assistant to fix NTFS.SYS missing or corrupt:

  1. Download and install AOMEI Partition Assistant from the official website.
  2. Launch the software and select the disk where the NTFS.SYS file is located.
  3. Right-click on the partition and choose 'Check File System'.
  4. Follow the on-screen instructions to complete the file system check and repair.

Frequently Asked Questions (FAQ)

Q: How do I know if the NTFS.SYS file is missing or corrupt?

A: You may encounter error messages like 'NTFS.SYS is missing or corrupt' or experience frequent system crashes and booting issues.

Q: Can I restore the NTFS.SYS file from a backup?

A: If you have a backup of the file, you can restore it using the backup software or built-in backup and restore options.

Q: What if none of the solutions work?

A: If the issue persists, it could indicate more significant system problems. It is recommended to seek professional help or contact Microsoft support for further assistance.

Q: How do I prevent NTFS.SYS missing or corrupt issues?

A: Regularly update your operating system, keep your device drivers up to date, use reliable antivirus software, and avoid unsafe downloads or websites.

Key Technical Terms

1. NTFS.SYS: It is a system file in Windows that helps manage the NTFS file system, responsible for maintaining data integrity and organizing files on the hard drive.

2. File System: It refers to how data is organized and stored on a storage device. NTFS is the default file system used by Windows for its support of advanced features like file encryption, compression, and security.

3. Boot Configuration Data (BCD): It is a file that contains necessary information to start your Windows operating system. It includes boot parameters, options, and settings for the operating system, boot entries, and more.


  • Regularly update your Windows operating system to ensure you have the latest security patches and bug fixes.
  • Always create a backup of important files to safeguard against unexpected data loss.
  • Scan your computer regularly with a reliable antivirus software to detect and remove any malware infections.


Encountering the NTFS.SYS missing or corrupt issue on Windows 10 can be frustrating, but with the provided solutions, software recommendations, and answers to common questions, you will be able to overcome this problem effectively. Remember to follow the step-by-step solutions, perform regular system maintenance, and seek professional help if needed. By addressing the NTFS.SYS issue promptly, you can restore stability and reliability to your Windows 10 system.

Nene Aly
Nene Aly · Editor