The Windows Live Messenger 80040154 error is a problem that’s caused by the “MSXML” library of Windows being corrupted – preventing the Windows Live Messenger to send the data it requires to the authentication server. We’ve found that although this file is continually causing a lot of problems for your computer, it’s actually relatively easy to fix, if you are able to re-register the files that Windows Live Messenger will use, as well as cleaning out any potential settings problems that your system may have.
The Windows Live Messenger 80040154, as mentioned, is caused by the “MSXML” language of your PC being unable to process the settings that it needs. The msxml language is basically a set of functions & settings that Windows computers to send information from your PC to another server through the Internet. Many Internet-centric programs, such as Skype, Windows Live Messenger, and others, are all designed to use the MSXML language to send through 100’s of important files and settings to-and-from your PC.
In order to resolve the problems you may have, it’s important that you first ensure that you are able to fix the various issues that the msxml file might have on your system, as well as then cleaning up all the potential problems inside the registry.
The first step to resolving this error is to first “re-register” the files that Windows will use to help it run Windows Live Messenger. This basically means that you should click onto the “CMD” (command prompt) program of Windows, and then use the regsvr32 function to register the following file: “regsvr32 system32msxml3.dll”. This file is used by Windows to help load up the msxml language, ensuring that your PC is able to process the various important settings that it requires to run. This will ensure your PC is able to process the important options that it requires to operate the Windows Live Messenger program, and should resolve 99% of the cases of 80040154 errors.
The next step is to clean out the registry of your PC with a “registry cleaner”. This is a central database which stores all the settings that Windows needs to run, and is used to help your system process the important options that are used to load up the likes of your system’s “desktop wallpaper” all the way through to your password options. The registry database is one of the most important parts of the entire Windows system, making it essential that you’re able to clean out the various problems it has inside. We recommend using a program called Frontline Registry Cleaner 2.0 to ensure that the 80040154 error does not return.
