I delete all the files before I try to remove the folder. the folder is empty. there are no applications using this folder. I'm not sure what services run in the background, but it is not possible to disable them. All this also does not explain how on the second computer the folder ends up in "Limbo", I can see it in the windows explorer, but I can't access it, it's as if the RmDir hasn't finished running, because the second the app closes the folder is gone