Of course, they can access , i am not a newbie using Sandboxie. As i said before, i was using those programs installed inside sandboxes and most of my games worked without a problem, easy anticheat games dont, of course. This issue started with that version of Sandboxie that "fixed" live/hotmail logins under a sandboxed browser. On W7 i can log in into Uplay normally. 80% of my Steam games used to work too, but Windows 20H1 broke Steam installed inside a sandbox, because i couldn´t update my games. For that reason i installed W10 1903 version, and Steam is able to update my games again. Something about sandboxed programs handling or accessing files or folders is really broken on 20H1, for example, Firefox trying to save a file in a different location on the hard drive is slow as hell. On 1903 it's instantaneous. It´s a shame that Windows 7 + Sandboxie works a lot better than any W10 version. Excuse my poor english.