[PC Gaming] Problem with installing Half Life Update

Hey everyone, I need some big help with something! I've been trying to install the Half-Life 1.1.0.4 Update, which is the Team Fortress Classic update on my computer when I get this error when installing it.
It says "This is not the correct language setup".
I bought this game off Ebay, me and the person who sold the game are both in the U.S.
Can anyone please help me with this! Here's a picture of the error.


Thanks for reading this post!  
-superbuza