diff --git a/scripts/e2e/parallels/windows-git.ts b/scripts/e2e/parallels/windows-git.ts
index e2485d7fe98e..16e0cc72cb9c 100644
--- a/scripts/e2e/parallels/windows-git.ts
+++ b/scripts/e2e/parallels/windows-git.ts
@@ -82,17 +82,30 @@ print(best["browser_download_url"])`,
   }
   const zipPath = path.join(tgzDir, name);
   say(`Download ${name}`);
-  run("curl", [
-    "--retry",
-    "5",
-    "--retry-delay",
-    "3",
-    "--retry-all-errors",
-    "-fsSL",
-    url,
-    "-o",
-    zipPath,
-  ]);
+  run(
+    "curl",
+    [
+      "--retry",
+      "5",
+      "--retry-delay",
+      "3",
+      "--retry-all-errors",
+      "--connect-timeout",
+      "10",
+      "--max-time",
+      "120",
+      "--retry-max-time",
+      "120",
+      "-fsSL",
+      url,
+      "-o",
+      zipPath,
+    ],
+    {
+      // curl can start one final 120s transfer at the retry-window edge.
+      timeoutMs: 270_000,
+    },
+  );
   return zipPath;
 }
 
diff --git a/test/scripts/parallels-windows-git.test.ts b/test/scripts/parallels-windows-git.test.ts
new file mode 100644
index 000000000000..1e2ba06bb7a3
--- /dev/null
+++ b/test/scripts/parallels-windows-git.test.ts
@@ -0,0 +1,57 @@
+// Parallels Windows Git tests cover host-side MinGit preparation.
+import path from "node:path";
+import { describe, expect, it, vi } from "vitest";
+
+const { runMock } = vi.hoisted(() => ({
+  runMock: vi.fn(),
+}));
+
+vi.mock("../../scripts/e2e/parallels/host-command.ts", async (importOriginal) => {
+  const actual =
+    await importOriginal<typeof import("../../scripts/e2e/parallels/host-command.ts")>();
+  return {
+    ...actual,
+    run: runMock,
+    say: vi.fn(),
+  };
+});
+
+import { prepareMinGitZip } from "../../scripts/e2e/parallels/windows-git.ts";
+
+describe("Parallels Windows MinGit preparation", () => {
+  it("bounds the host asset download across connections, transfers, and retries", async () => {
+    const assetName = "MinGit-2.53.0.2-64-bit.zip";
+    const assetUrl = `https://example.test/${assetName}`;
+    const targetDir = path.join("tmp", "windows-smoke");
+    const targetPath = path.join(targetDir, assetName);
+    runMock.mockImplementation((command: string) => ({
+      status: 0,
+      stderr: "",
+      stdout: command === "python3" ? `${assetName}\n${assetUrl}\n` : "",
+    }));
+
+    await expect(prepareMinGitZip(targetDir)).resolves.toBe(targetPath);
+    expect(runMock).toHaveBeenNthCalledWith(
+      2,
+      "curl",
+      [
+        "--retry",
+        "5",
+        "--retry-delay",
+        "3",
+        "--retry-all-errors",
+        "--connect-timeout",
+        "10",
+        "--max-time",
+        "120",
+        "--retry-max-time",
+        "120",
+        "-fsSL",
+        assetUrl,
+        "-o",
+        targetPath,
+      ],
+      { timeoutMs: 270_000 },
+    );
+  });
+});