tried to delete all the .idx files in data as suggested when the scan and repair loops, but it keeps on looping.
TYI, it started with retail asking for “update” aka scan and repair, (it didnt let me launch wow classic) then i tried to uninstall, but then the same problem happend to wow classic
i also can’t install retail again, just sit and load when im asked to select HD
FIXED:
apparently deleting all the files in DATA folder helped ( did not delete the folders in data) it downloaded all of it and let me launch the game.
It also allowed me to install retail.
So yeah, it’s fixed