I purchased an inexpensive ASUS W8.1 notebook for traveling. Although I have the exact sandboxie settings on both it and my x64 W7 SP1 PC, the # does not show up in any program that is sandboxed, however, the border is visible if I select that option. The other thing that is different is when closing sandboxed programs, such as browsers, on the PC, the Sandboxie icon in the notification area flashes the red X (signifying the sandbox has been deleted) but not on the notebook. I do miss that feature! I do realize that W8.1 doesn't really have a separate notification area like W7. Of course, all of this may be out the window (no pun intended) when W10 comes down the pike anyway. Thank you for any observations!