• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 2548
  • Last Modified:

Windows activation popup error.

In vista I keep getting a "Windows Activation"  An unauthorized change was made to windows. You will no longer receive notifications, including those about your license or activation. Use the link below to find out how to fix your system. Error 0xC004D401 Description: The security processor reported a system file mismatch error.

I have spent very little time on it. Been so busy on other computers, and really need to get this one out. Any help would be great. Thanks the only thing I did to it was a system file check. And a check disk. I also can not get in to system properties.
  • 2
1 Solution
ripdamonAuthor Commented:
Wow how simple. Lol I love this site. That was much faster then having to search for the problem. You rule! Thanks!   Ps it was Avast.
Glad to hear it .
I thought it might be avast , Iv'e had similar issues with it in the past
I have this same issue happen with a computer with Windows Small Business Server 2008 Prime Edition. When I try to login to the server, I can't get a desktop. It goes right to an error box with the options to learn more online or close. If I choose close, it immediately logs me off. If I go to the learn more online, a web page comes up and tries to run the Windows validation for Windows being genuine. Our organization recently hired a company to do a network scan for vulnerabilities and feel that this error may be caused by our anti-virus, which is Symantec Endpoint protection version 12. I will have to go to the location this computer is at and try to start in safe mode. Any  input would be welcome.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now