Security processor reported a mismatch error?

[umike90]

I just got this error after doing a system update on my laptop.

Error: 0xC004D401
Description: The security processor reported a system file mismatch error.

What does this mean and what should I do to fix it?

 

[hang-the-9]

Does it happen every time or just once? When exactly does the error come up?

 

[umike90]

This was the first time it happened. What is it?

 

[hang-the-9]

Take a look here http://forums.cnet.com/7723-12546_102-529082/windows-software-protection-error-0xc004d401/

Either the OS you have is pirated, or some security software you have is not compatible with Vista. If could have been a temporary thing when Vista updated a file that the OS caught as bad for a second.