{"version":"2.1.307","anchor":"windows-sandbox-first-start-flow","canonical_anchor":"windows-sandbox-first-start-flow","heading":"First-time setup step for the Windows sandbox","tier":"notice","area":"Sandbox","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307\/e\/windows-sandbox-first-start-flow","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307","markdown":"### First-time setup step for the Windows sandbox\n\nThe first time the Windows sandbox starts, Claude Code runs a setup check that may show an administrator prompt and can take a few minutes\n\n**Unclear.** It is unclear whether this setup runs for every Windows user who uses the sandbox or only in some setups.\n\n**What**\n\nThe sandbox is a restricted area where Claude Code runs commands so that they cannot reach everything on your computer. On Windows, the first time the sandbox starts, Claude Code now runs a setup check. While it runs, Claude Code shows: \"Setting up the Windows sandbox. Approve the administrator prompt if Windows shows one. After that, set-up can take a few minutes.\"\n\n**Why**\n\nWindows users may see a request for administrator permission, and the first start can be slow. Neither is a sign that something has gone wrong.\n\n- Area: Sandbox\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}