diff --git a/src/infra/bonjour.test.ts b/src/infra/bonjour.test.ts
index d8f976fdc41ac..513250968c446 100644
--- a/src/infra/bonjour.test.ts
+++ b/src/infra/bonjour.test.ts
@@ -307,4 +307,29 @@ describe("gateway bonjour advertiser", () => {
 
     await started.stop();
   });
+
+  it("disables Bonjour on win32 unless explicitly enabled", async () => {
+    enableAdvertiserUnitMode();
+    vi.spyOn(process, "platform", "get").mockReturnValue("win32");
+
+    const started = await startGatewayBonjourAdvertiser({
+      gatewayPort: 18789,
+      sshPort: 2222,
+    });
+    expect(createService).not.toHaveBeenCalled();
+    await started.stop();
+
+    createService.mockClear();
+    process.env.OPENCLAW_ENABLE_BONJOUR_WINDOWS = "1";
+    const destroy = vi.fn().mockResolvedValue(undefined);
+    const advertise = vi.fn().mockResolvedValue(undefined);
+    mockCiaoService({ advertise, destroy });
+
+    const enabled = await startGatewayBonjourAdvertiser({
+      gatewayPort: 18789,
+      sshPort: 2222,
+    });
+    expect(createService).toHaveBeenCalledTimes(1);
+    await enabled.stop();
+  });
 });
diff --git a/src/infra/bonjour.ts b/src/infra/bonjour.ts
index 7d405741a0ecd..95b956b90b77f 100644
--- a/src/infra/bonjour.ts
+++ b/src/infra/bonjour.ts
@@ -29,6 +29,14 @@ function isDisabledByEnv() {
   if (isTruthyEnvValue(process.env.OPENCLAW_DISABLE_BONJOUR)) {
     return true;
   }
+  // On Windows, ciao's network probing can spawn visible cmd.exe helpers on some
+  // hosts. Keep Bonjour opt-in there to avoid periodic console-window flashing.
+  if (
+    process.platform === "win32" &&
+    !isTruthyEnvValue(process.env.OPENCLAW_ENABLE_BONJOUR_WINDOWS)
+  ) {
+    return true;
+  }
   if (process.env.NODE_ENV === "test") {
     return true;
   }