I use only TCC which I generally start from an icon on the desktop. I have observed a new problem with the last few versions of Win10 that I have installed. I am on the Fast Ring of the Windows Insider program and on the last couple of versions of Win10 (currently 18945), the first time I start TCC from the icon the screen comes up as a dud i.e. there is the normal heading and then nothing---there is no disk called out. In the Task Bar it has a funny thing rather than the usual "Admin: TCC". You can't do anything on that instantiation except kill it. This is not a major problem, but it is annoying. In 4start.cmd I have prompt "`%@lower[%_disk]`:$g" so normally I would get a prompt like "c:>", but no joy.