Issue: How to fix ntdll.dll error in Windows?
Hello. Yesterday I try to play a video game on my Windows PC but it crashed multiple times in a row with an ntdll.dll error. What should I do?
Windows contains multiple DLL (Dynamic-Link Library) files. They are a type of system file that contains code and data that can be used by multiple programs at the same time. If DLL files get corrupted or go missing, users can experience the same .dll errors with multiple different applications.
Recently, users reported receiving the ntdll.dll error. Some people experienced it while playing video games, and others while trying to open specific applications. Ntdll.dll file is a file created by Microsoft with a description of “NT Layer DLL” and is the file containing NT kernel functions.
NT kernel is responsible for all communication between all of the software and hardware in your system, so any malfunctions in this process could be detrimental. It is unknown why exactly people encounter various ntdll.dll errors. It could be because of missing Windows updates or corrupted system files. Sometimes people also delete DLL files accidentally.
In this guide, you will find 5 steps that should help you fix ntdll.dll error in Windows. Keep in mind that the manual troubleshooting process can be lengthy. You can use a maintenance tool like FortectMac Washing Machine X9 to fix most system errors, BSODs, corrupted files, and registry issues. Otherwise, follow the step-by-step instructions below.
Solution 1. Update Windows
- Click Settings from your start menu and click Update & Security
- Choose Windows Upgrade from the left panel and click the Check for updates button, and then your computer will check for, download, and install any updates found
Solution 2. Fix Corrupted System Files
Use Command Prompt commands to repair system file corruption:
- Open Command Prompt as administrator
- Use the following command and press Enter:
- Reboot your system
- If SFC returned an error, then use the following command lines, pressing Enter after each:
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Solution 3. Reinstall the DLL
- Type cmd in the search box, and then right-click Command prompt and select Run as Administrator
- Type this in the command prompt one by one:
- regsvr32.exe /u ntdll.dll and press Enter to uninstall the file
- regsvr32.exe ntdll.dll and press Enter to reinstall the file
Solution 4. Use System Restore
System Restore can roll back the system back to a previous point when the error was not present. Use this utility and choose a restore point before the error started appearing.
- Search for Control Panel in your taskbar
- Change the view mode to Large icons
- Click on Recovery, then Open System Restore
- If prompted, enter your user password
- Follow the on-screen instructions and wait for the wizard to complete the restoration
- Restart your computer
Solution 5. Repair Install Windows
- Download the Windows 10 ISO file
- Now mount the ISO file
- Double-click on the file setup.exe to start the repair, install from the mounted drive
- When the installation provides the License Terms, read them and click Accept
- Windows 10 will now check for updates and will install the ones available
- When all is set, click Install
- When the installation is complete, follow the on-screen instructions
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