Use 7-Zip or WinRAR. Extract the repack to C:\WoW_548_Server (do not use "Program Files" or desktop shortcuts to avoid permission errors).
World of Warcraft is a massively multiplayer online role-playing game (MMORPG) created by Blizzard Entertainment. Released in 2004, it has become one of the most popular MMORPGs in the world, with a vast and dedicated player base. Wow 5.4.8 Repack