Enable Windows Sandbox to test unknown apps in an isolated, disposable Windows environment that disappears when you close it.

This is for Windows 11 Pro/Enterprise/Education users who want safer app testing without installing extra VM software.

Time required: about 2 minutes (plus one restart).

Quick Answer

Turn on Windows Sandbox in Windows Features, restart, open Sandbox from Start, test your file inside it, then close Sandbox to erase everything automatically.

Prerequisites

  • Windows 11 Pro, Enterprise, or Education (Windows Home does not include Sandbox)
  • Hardware virtualization enabled in BIOS/UEFI (Intel VT-x or AMD-V/SVM)
  • At least 4 GB RAM (8 GB recommended for smoother use)

Step-by-Step: Enable and Use Windows Sandbox

  1. Press Start, search for Turn Windows features on or off, and open it.
    Expected check: a Windows Features list appears.
  2. Find and check Windows Sandbox, then click OK.
    Expected check: Windows starts installing required components.
  3. Restart your PC when prompted.
    Expected check: system reboots and signs back in normally.
  4. After restart, press Start, search Windows Sandbox, and launch it.
    Expected check: a clean temporary Windows desktop opens in a window.
  5. Copy/paste or drag a test installer/file into Sandbox and run it there.
    Expected check: the app runs inside Sandbox, separate from your main system.
  6. When finished, close the Sandbox window and confirm close.
    Expected check: session is deleted and all changes made inside Sandbox are wiped.

Expected Result Checks

  • Windows Sandbox launches as a separate temporary desktop.
  • Files/apps tested inside Sandbox do not persist after closing it.
  • Your host Windows install remains unchanged by Sandbox session activity.

Common Mistakes

  • Trying on Windows Home: Sandbox is not available there.
  • Skipping restart: feature activation requires reboot before first launch.
  • Virtualization disabled: Sandbox may fail to start until VT-x/AMD-V is enabled.

Troubleshooting

  • Sandbox option missing: verify edition under Settings → System → About and confirm it’s Pro/Enterprise/Education.
  • Launch error or start failure: check Task Manager → Performance → CPU → Virtualization: Enabled.
  • Slow performance: close heavy host apps/tabs and try again with more free RAM.
  • Black screen or graphical glitches: install latest GPU and Windows updates, then relaunch Sandbox.

Why This Trick Is Worth It

Windows Sandbox gives you a “throwaway PC” in seconds. It’s perfect for trying unknown EXEs, scripts, and utilities without risking your main setup. For quick safety checks, it’s one of the most useful built-in Windows Pro features.

References

Related Internal Guides

Next-Step CTA

Run one app you normally hesitate to install directly on your PC inside Sandbox today. If it behaves well, install on host; if not, just close Sandbox and walk away clean.