game files have been detected to have no signatures or invalid signatures

[chupapi]

hello, i dont know what this is, nor how to fix this problem. the message says "Some of your game files have been detected to have no signatures or invalid signatures. You will not be allowed to join VAC secure servers.
Please verify your launch options, check correctness of your game installation, restart the game and try again."

It does this everytime i try join a server and i have not done anything wrong!!!
Please, how do i fix this problem and i have tried to verify the game cache and this does not work either.
Could someone please assist me here to fix this problem?

[jpcerutti]

https://support.steampowered.com/kb_article.php?ref=2117-ILZV-2837&l=english

Just posted this link in another thread. It should walk you through it.

[chupapi]

thanks bruh!