How to Remove Unused DLL Files From WinXP

Written by david somerset
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How to Remove Unused DLL Files From WinXP
Delete DLL files that Windows XP isn't using. (laptop computer image by Photoeyes from

Dynamic Link Library (DLL) files are common system files installed by Microsoft Windows as well as other programs on your PC. Many times when a program is installed, it adds DLL files into the system directory of your operating system. Often these files are not deleted when the program is uninstalled. If you know of DLL files that are not being used by your Windows XP system, you can remove them from the computer.

Skill level:


  1. 1

    Click "Start" and then choose "Run" from the menu. Type in "cmd" at the "Open" dialogue. Click "OK" to start a Command Prompt window.

  2. 2

    Navigate to the directory where the DLL file is located using the "cd" command. Type "cd" followed by the name of the directory you want to open ("cd Windows\system32," for instance). Most DLL files in Windows XP are located in the Windows system folder (usually C:\Windows\system32).

  3. 3

    Enter the command "regsvr32 /u file.dll," where "file" is the name of the DLL file you want to unregister. Press "Enter." Wait for the operating system to confirm that the unregistration was successful.

  4. 4

    Open "My Computer." Navigate to the folder where the DLL file is located. Click on the DLL file you want to remove. Press the "Delete" key and confirm that you really want to delete the file.

  5. 5

    Restart Windows to make sure that all changes are put into effect.

Tips and warnings

  • Only remove DLL files you are sure that Windows XP is not using. Many DLL files are vital system components.

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