How to Repair 665.ntdll.dll Errors

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A DLL file, short for Dynamic Link Library, is a type of file used by multiple programs to share code and resources. Specifically, 665.ntdll.dll is a critical system file that contains functions used by the Windows operating system. This file is essential for the stable operation of Windows and can cause system errors if it becomes corrupted or goes missing.

Users may encounter issues such as error messages, crashes, or system instability if there are problems with 665.ntdll.dll.

System Failure - 665.ntdll.dll
Missing 665.ntdll.dll is causing the program startup issue. Try a reinstallation for a solution.

What is 665.ntdll.dll?

A DLL (Dynamic Link Library) file is a collection of small programs, which can be called upon by various programs on a computer. These programs help the main software work properly and efficiently. 665.ntdll.dll is one such DLL file that contains code and data used by numerous programs on a Windows computer.

Specifically, 665.ntdll.dll is an integral part of the Windows operating system and is essential for the proper functioning of various software applications, including Microsoft Visual Studio Enterprise 2015. Microsoft Visual Studio Enterprise 2015 relies on 665.ntdll.dll to perform many crucial tasks, such as managing memory, handling input and output operations, and providing support for numerous functions used by the software. Without 665.ntdll.dll, Microsoft Visual Studio Enterprise 2015 and other related software may not function properly, leading to potential errors and system instability.

Therefore, the importance of 665.ntdll.dll in the context of its association with Microsoft Visual Studio Enterprise 2015 cannot be overstated, as it plays a crucial role in ensuring the smooth operation of this software and others on the Windows platform.

Although essential for system performance, dynamic Link Library (DLL) files can occasionally cause specific errors. The following enumerates some of the most common DLL errors users encounter while operating their systems:

  • The file 665.ntdll.dll is missing: This message means that the system was unable to locate the DLL file needed for a particular operation or software. The absence of this file could be due to a flawed installation process or an aggressive antivirus action.
  • 665.ntdll.dll not found: The required DLL file is absent from the expected directory. This can result from software uninstalls, updates, or system changes that mistakenly remove or relocate DLL files.
  • Cannot register 665.ntdll.dll: The message means that the operating system failed to register the DLL file. This can happen if there are file permission issues, if the DLL file is missing or misplaced, or if there's an issue with the Registry.
  • This application failed to start because 665.ntdll.dll was not found. Re-installing the application may fix this problem: This error message is a sign that a DLL file that the application relies on is not present in the system. Reinstalling the application may install the missing DLL file and fix the problem.
  • 665.ntdll.dll Access Violation: This indicates a process tried to access or modify a memory location related to 665.ntdll.dll that it isn't allowed to. This is often a sign of problems with the software using the DLL, such as bugs or corruption.

File Analysis: Is 665.ntdll.dll a Virus?

The file in question, 665.ntdll.dll, has been thoroughly scanned and shows no signs of virus detection, as evidenced by the clean results from 0 distinct virus scanners. It's always reassuring to encounter files with no known associated threats, as these pose a lesser risk to your system's integrity and performance.

Maintaining System Security

A healthy computing environment is achieved through attentive management and proactive protective measures. Keep your system's defenses updated and periodically scan files to maintain your computer's security and performance.

How to Remove 665.ntdll.dll

If the need arises to completely eliminate the 665.ntdll.dll file from your system, follow these steps cautiously. When dealing with system files, it's crucial to exercise care to avoid unexpected system behavior.

  1. Locate the File: Begin by finding the whereabouts of 665.ntdll.dll on your computer. You can do this by right-clicking the file (if visible) and selecting Properties, or by employing the search feature in File Explorer.

  2. Safeguard Your Data: Before proceeding, ensure you have a backup of important data. This ensures that your vital files are secure in case of any mishaps.

  3. Remove the File: Once you've pinpointed 665.ntdll.dll, right-click on it and choose Delete. This action moves the file to the Recycle Bin.

  4. Empty the Recycle Bin: After deleting 665.ntdll.dll, don't forget to empty the Recycle Bin to entirely purge the file from your system. Right-click on the Recycle Bin and select Empty Recycle Bin.

  5. Conduct a System Scan: Following the file removal, execute a comprehensive system scan using a reputable antivirus tool to ensure there are no lingering file remnants or potential threats.

Note: It's important to note that if 665.ntdll.dll is tied to a specific program, its removal may impact the program's functionality. If you encounter issues post-deletion, consider reinstalling the software or seeking assistance from a tech expert.

Repair 665.ntdll.dll Error Automatically

Featured Guide
Repair 665.ntdll.dll Error Automatically Thumbnail
Time Required
3 minutes

In this guide, we will fix 665.ntdll.dll errors automatically.

Step 1: Download Fortect (AUTOMATIC FIX)

Step 1: Download Fortect (AUTOMATIC FIX) Thumbnail
  1. Click the Download Fortect button.

  2. Save the Fortect setup file to your device.

Step 2: Install Fortect

Step 2: Install Fortect Thumbnail
  1. Locate and double-click the downloaded setup file.

  2. Follow the on-screen instructions to install Fortect.

Step 3: Run Fortect

Step 3: Run Fortect Thumbnail
  1. Finish the installation and open Fortect.

  2. Select the System Scan option.

  3. Allow Fortect to scan your system for errors.

  4. Review the scan results once completed.

  5. Click on Fix Errors to start the repair process.

Perform a Repair Install of Windows

Perform a Repair Install of Windows Thumbnail
Time Required
45 minutes

How to perform a repair install of Windows to repair 665.ntdll.dll issues.

Step 1: Create a Windows 10 Installation Media

Step 1: Create a Windows 10 Installation Media Thumbnail
  1. Go to the Microsoft website and download the Windows 10 Media Creation Tool.

  2. Run the tool and select Create installation media for another PC.

  3. Follow the prompts to create a bootable USB drive or ISO file.

Step 2: Start the Repair Install

Step 2: Start the Repair Install Thumbnail
  1. Insert the Windows 10 installation media you created into your PC and run setup.exe.

  2. Follow the prompts until you get to the Ready to install screen.

Step 3: Choose the Right Install Option

Step 3: Choose the Right Install Option Thumbnail
  1. On the Ready to install screen, make sure Keep personal files and apps is selected.

  2. Click Install to start the repair install.

Step 4: Complete the Installation

Step 4: Complete the Installation Thumbnail
  1. Your computer will restart several times during the installation. Make sure not to turn off your computer during this process.

Step 5: Check if the Problem is Solved

Step 5: Check if the Problem is Solved Thumbnail
  1. After the installation, check if the 665.ntdll.dll problem persists.

Reinstall Problematic Software related to 665.ntdll.dll

Reinstall Problematic Software related to 665.ntdll.dll Thumbnail
Time Required
10 minutes

In this guide, we will detail the process of uninstalling and then reinstalling the software associated with 665.ntdll.dll.

Step 1: Uninstall the Problematic Software

Step 1: Uninstall the Problematic Software Thumbnail
  1. Press the Windows key.

  2. Type Control Panel in the search bar and press Enter.

  3. Click on Uninstall a program under Programs.

  4. Find and click on the software, then click Uninstall.

Step 2: Restart Your Computer

Step 2: Restart Your Computer Thumbnail
  1. After the uninstall process is complete, restart your computer.

Step 3: Reinstall the Software

Step 3: Reinstall the Software Thumbnail
  1. Visit the official website of the software developer.

  2. Download the latest version of the software.

  3. Open the downloaded file and follow the instructions to install the software.

Step 4: Check if the Problem is Solved

Step 4: Check if the Problem is Solved Thumbnail
  1. After the program is installed, check if the 665.ntdll.dll problem persists.

Software that installs 665.ntdll.dll

Software File MD5 File Version
0061C4FE3B1865047AAA77F912E1E93A26F4EDED 2015
Files related to 665.ntdll.dll
File Type Filename MD5