Technical problem

Hello, I've just download the game and received this error message during the update
here's the error : The file "C:\Users\Admin\Downloads\Wrath of the Lich King 3.3.5a\WoW.exe" is read only and cannot be overwritten. Please try installing to a different location. (ConflictManager::DeleteFile)

Thanks for your answere

Right click on "Wrath of the Lich King 3.3.5a" Folder > Properties> disable "Read-Only"

Thanks you very much I LOVE YOU !!!

It does not have to update. Log in with username not email.