0XC004D401 error generate in Windows Vista which stop your system to run any various programs or many another tasks. Generally it has found that error 0XC004D401 is caused due to mismatch in authentication of your Window Vista , which makes Windows to think that it is not validated. But there are numerous ways to fix 0XC004D401 errors in your Windows Vista System.

Most of the error that caused by 0XC004D401 error are :

"Error 0XC004D401": The security processor reported system file mismatch error", or "Error 0XC004D401 : unrecognized error".

Cause:

Error 0XC004D401 are caused generally from security software or antivirus that is not compatible with your Vista system. Other problems due to which these error are caused :

• Corrupt system files.
• Incompatible antivirus /security programs.
• Corrupted registry settings.

Resolution:

First thing which you must do to rectify this error is to remove or disable various security software that you might have installed. This is the best thing to do and after see that if the error appears. After that if error does not appears , uninstall security software and contact to developer for quick update.

If this does not work , after then you look for “system restore” of your system to make your data back when the errors were not causing problem. To perform data recovery vista , click Start>All Programs>System tools and after that click on “System restore”. This will load up a screen with a calendar on it, where to restore your computer , you can select the date.

You should also look for an “registry cleaner” to fix your errors that are appearing as well. Registry cleaner will scan through the database and it will remove all your corrupted and damaged settings that have occurred inside your PC. But in many of the case 0XC004D401 error is the way in which windows corrupts many of the settings.

If you are not able fix 0XC004D401 error in your windows vista then you can for third party tool. Download data recovery vista software to recover your damaged and corrupted data that have lost due to 0XC004D401.