I tried to use a different email address to sign in to Windows from the one associated with my Minecraft purchase, and what a nightmare that was. Spent hours f

I tried to use a different email address to sign in to Windows from the one associated with my Minecraft purchase, and what a nightmare that was. Spent hours flailing with the Xbox store, Microsoft store, Mojang and Minecraft accounts, resetting passwords, etc. Eventually got it to work but I have no idea what fixed it.