Ring Windows App

Hi, since having to re-install windows 10 on my system, the Ring app has disappeared. Windows store reports "you own this app" but attempting to download/install just stops with an error, Code: 0x8024801E. I'm guessing the re-install left bits of the original installation in place but I can't run it or find how to un-install as it doesn't appear in the windows/settings/list of apps.