From Blizzard
We can't install World of Warcraft: Forever because your operating system doesn't meet the minimum specs to run
Blizzard blue post · Kaivax
Just want to make sure you’ve seen this, in case it applies to your situation:
World of Warcraft
World of Warcraft: Forever GPU Requirements - WoW
When World of Warcraft: Forever launches GPUs based on certain older graphics architectures that fall well below the game's minimum hardware requirements will no longer be supported. The vast majority of World of Warcraft players already use...