Windows Sandbox is the safest way to test unknown files without risking your PC

Most of us have downloaded something that made us hesitate before double-clicking on the file. Maybe it was a utility from GitHub, a driver mirror you do not fully trust, or an installer that Windows Defender flagged as “unknown.” In those moments, the usual options are not great. You can either roll the dice, run it on your main PC, and hope for the best, or you can skip it entirely. Windows gives you a third option, and it is one most Windows users overlook.