I've been on WIndows 8.1 for a little while (week or so since release). Today I noticed a Skydrive.old directory in the C:\Users\username directory. What is this? It seems to contain older versions of some files from the normal SkyDrive directory, but I don't know why it chose the particular point in time or how it showed up all of a sudden. Why now and what is it? Seems like a waste of disc space and could cause confusion if someone saved files there.

Thanks for any insight!