Ntdll.dll is a Dynamic Link Library (DLL) file used by the Windows operating system. A DLL is a piece of data that can be used by several different programs. Ntdll.dll is located in the c:\windows\system32 directory and is necessary for the proper functioning of the Windows operating system. The vast majority of DLL errors are caused by minor problems with the DLL file and thus can be fixed by simply reinstalling the DLL file.
- Skill level:
- Moderately Easy
Click on the "Start" menu.
Type "Update" into the "Search Programs and Files" box and select "Windows Update" from the list of results. If you are using a version of Windows prior to Windows Vista, click on "All Programs" and then "Windows Update."
Click "Check for Updates" in the left pane.
Check the box next to each available update and click "OK."
Click "Install Updates."
Hold down the Windows key and press "R." Or, if using a version of Windows prior to Vista, Click on the "Start" menu, and then click "Run." (See http://www.delphifaq.com/faq/windows_user/f668.shtml)>
Type "regsvr32.exe /u ntdll.dll" (without the quotation marks) into the Command Prompt and press ENTER. This will uninstall the file. (See http://www.delphifaq.com/faq/windows_user/f668.shtml)>
Type "regsvr32.exe ntdll.dll" (without the quotation marks) into the Command Prompt and Press ENTER. This will reinstall the file. (See http://www.delphifaq.com/faq/windows_user/f668.shtml)>
Reinstall The DLL
Tips and warnings
- In addition to the steps above, you should update and run your antivirus program. Some DLL errors are the result of a computer virus. Updating and running your antivirus program will help detect and remove any such virus.
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