Technical New User cannot boot game.

[Ger0n1m0]

He Direct downloaded from Warmane and selected wrath of the lich king. when he extracted the compressed file and selected the World of Warcraft .exe file to boot to the main login, he received an error saying "This application has encountered a critical error:

ERROR # 121 (0x85100079) Version Mismatch
Program: C:/Users/giann/Onedrive/?p??????st??/New
folder/World of Warcraft 3.3.5a/World of Warcraft
3.3.5a/World Of Warcraft 3.3.5a/Wow.exe

DBFilesClient/Achievement_Criteria.dbc has wrong number of colomns (found 28, expected 31)

Press OK to terminate the Application."

[Findrin]

This means one of the game’s files is corrupted. The best solution is to download a fresh client.
Edit : Please don't use Onedrive to store the game, use local one.

[mysecondacc]

More specifically, make a folder C:/Games and store/install your games there.