The "Rune Part 1" designation specifically refers to the first segment of the split archive file used for this update. Users often encounter this keyword when searching for ways to manually update their game outside of the standard Steam or Xbox launcher.
If you have acquired ForzaHorizon5UpdateV1671650RunePart1 , it is likely part of a multi-volume archive. Upon extracting all parts (Part1, Part2, etc.), you would find: forzahorizon5updatev1671650runepart1
: Fixed issues where Forza Edition car perks were missing from selection menus and general stability improvements to reduce crashes. Quick Resume Fix The "Rune Part 1" designation specifically refers to