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If installing MSXML 4.0 doesn't fix the msxml4.dll error, reinstall the program that uses the file
By
Tim Fisher
Tim Fisher
Senior Vice President & Group General Manager, Tech & Sustainability
- Emporia State University
Tim Fisher has more than 30 years' of professional technology experience. He's been writing about tech for more than two decades and serves as the SVP and General Manager of Lifewire.
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Updated on August 1, 2024
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In This Article
- How to Fix Msxml4.dll Errors
- Causes of Msxml4.dll Errors
Msxml4.dll errors are caused by situations that lead to the removal or corruption of the msxml4DLL file. In some cases, msxml4.dll errors could indicate aregistryproblem, a virus ormalwareissue, or even ahardwarefailure.
How to Fix Msxml4.dll Errors
Follow these steps in the order they're listed below to try the more likely fixes first.
Do not download msxml4.dll from a "DLL download" website. There are many reasons why it's a bad idea to download DLL files from sites like that. If you need a copy of this file, it's best to obtain it from its original, legitimate source.
Restore msxml4.dll from the Recycle Bin. The easiest possible cause of a "missing" msxml4.dll file is that you've mistakenly deleted it.
If you suspect this, but you've already emptied the Recycle Bin, you may be able to recover the file with a free data recovery program.
Start Windows in Safe Mode to complete this step, or any of the below steps, if you're unable to access Windows normally due to the error.
Download and install MSXML 4.0 SP3 from Microsoft. This is the source of the DLL file and should be the only place you download msxml4.dll.
MSXML 4.0 isn't the newest version of MSXML, but it's the program necessary for replacing a missing or corrupt msxml4.dll file.MSXML 6.0, for example, though newer than v4.0, is necessarily if you're getting errors aboutmsxml6.dll.
Reinstall the program that uses the msxml4.dll file. If the msxml4.dll error isn't resolved after installing MSXML, your next best option is to reinstall the program that's giving you the error message.
MSXML will put the msxml4.dll file in a C:\Windows\subfolder. If the program that needs this DLL file doesn't look for it in that folder specifically, then reinstalling should reconfigure the program to either install a new version of msxml4.dll or copy it from the Windows folder. In other words, don't follow this step without first trying Step 2.
Run a virus/malware scan of your entire system. Some msxml4.dll errors could be related to a virus or other malware infection on your computer that has damaged the DLL file. It's even possible that the error you're seeing is related to a hostile program that's masquerading as the file.
Use System Restore to undo recent system changes. If you suspect that the error was caused by a change made to an important file or configuration, System Restore could solve the problem.
Update the drivers for hardware devices that might be related to msxml4.dll. If, for example, you're receiving a "The file msxml4.dll is missing" error when you play a 3D video game, try updating the drivers for your video card.
This file may or may not be related to video cards—this was just an example. The key here is to pay very close attention to the context of the error and troubleshoot accordingly.
Roll back a driver to a previously installed version if msxml4.dll errors began after updating a particular hardware device's driver.
Run thesfc/scannowSystem File Checker command to replace a missing or corrupt copy of the msxml4.dll file. Since this DLL is a Microsoft file, the System File Checker tool might restore it.
Install any available Windows updates. Many service packs and other patches replace or update some of the hundreds of Microsoft distributed DLL files on your computer. The msxml4.dll file might be included in one of those updates.
Test your memory and then test your hard drive. We've left the majority of hardware troubleshooting to the last step, but your computer's memory and hard drive are easy to test and are the most likely components that might cause DLL errors as they fail.
If the hardware fails any of your tests, replace the memory or replace the hard drive as soon as possible.
Repair your installation of Windows. If the individual troubleshooting advice above is unsuccessful, performing a startup repair or repair installation should restore all Windows DLL files to their working versions.
Use a free registry cleaner to repair msxml4.dll related issues in the registry. A free registry cleaner program may be able to help by removing invalid msxml4.dll registry entries that might be causing the DLL error.
Perform a clean installation of Windows. This will erase everything from the hard drive and install a fresh copy of Windows. If none of the steps above correct the msxml4.dll error, this should be your next course of action.
All the information on your hard drive will be erased during this step. Make sure you've made the best attempt possible to fix the msxml4.dll error using a troubleshooting step prior to this one.
Troubleshoot for a hardware problem if any msxml4.dll errors persist. After a clean install of Windows, your DLL problem can only be hardware related.
Causes of Msxml4.dll Errors
There are several ways msxml4.dll errors can show up on your computer, such as:
- Msxml4.dll Not Found
- This application failed to start because msxml4.dll was not found. Re-installing the application may fix this problem
- Cannot find [PATH]\msxml4.dll
- The file msxml4.dll is missing
- Cannot start [APPLICATION]. A required component is missing: msxml4.dll. Please install [APPLICATION] again
These error messages might appear while using or installing certain programs, when Windows starts or shuts down, or maybe even during a Windows installation.
The context of the error is an important piece of information that will be helpful while solving the problem. The error message could apply to any program or system that might utilize the file on any of Microsoft'soperating systems,includingWindows 11, Windows 10,Windows 8,Windows 7,Windows Vista,Windows XP, and Windows 2000.
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