diff --git a/package.json b/package.json
index 0d64e14..dd65ebe 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
 		"test:browser": "vitest --config vitest.browser.config.ts --run",
 		"test:browser:install": "playwright install --with-deps chromium-headless-shell",
 		"test:e2e": "playwright test",
+		"test:e2e:windows-native-checklist": "playwright test tests/e2e/windows-native-checklist.spec.ts",
 		"prepare": "husky",
 		"rebuild:native": "node ./scripts/rebuild-native.mjs",
 		"postinstall": "npm run rebuild:native"
diff --git a/src/components/launch/LaunchWindow.tsx b/src/components/launch/LaunchWindow.tsx
index e4c23d7..992ec6b 100644
--- a/src/components/launch/LaunchWindow.tsx
+++ b/src/components/launch/LaunchWindow.tsx
@@ -537,6 +537,7 @@ export function LaunchWindow() {
 				{/* Audio controls group */}
 				<div className={`${hudGroupClasses} ${styles.electronNoDrag}`}>
 					<button
+						data-testid="launch-system-audio-button"
 						className={`${hudIconBtnClasses} ${systemAudioEnabled ? "drop-shadow-[0_0_4px_rgba(74,222,128,0.4)]" : ""}`}
 						onClick={() => !recording && setSystemAudioEnabled(!systemAudioEnabled)}
 						disabled={recording}
@@ -549,6 +550,7 @@ export function LaunchWindow() {
 							: getIcon("volumeOff", "text-white/40")}
 					</button>
 					<button
+						data-testid="launch-microphone-button"
 						className={`${hudIconBtnClasses} ${microphoneEnabled ? "drop-shadow-[0_0_4px_rgba(74,222,128,0.4)]" : ""}`}
 						onClick={toggleMicrophone}
 						disabled={recording}
@@ -562,6 +564,7 @@ export function LaunchWindow() {
 							: getIcon("micOff", "text-white/40")}
 					</button>
 					<button
+						data-testid="launch-webcam-button"
 						className={`${hudIconBtnClasses} ${webcamEnabled ? "drop-shadow-[0_0_4px_rgba(74,222,128,0.4)]" : ""}`}
 						onClick={async () => {
 							await setWebcamEnabled(!webcamEnabled);
@@ -577,6 +580,7 @@ export function LaunchWindow() {
 
 				{/* Record/Stop group */}
 				<button
+					data-testid="launch-record-button"
 					className={`flex items-center justify-center rounded-full p-2 transition-[min-width,background-color] duration-150 ${recording ? "min-w-[78px]" : "min-w-[36px]"} ${styles.electronNoDrag} ${
 						recording
 							? paused
@@ -629,6 +633,7 @@ export function LaunchWindow() {
 						{/* Open video file */}
 						<Tooltip content={t("tooltips.openVideoFile")}>
 							<button
+								data-testid="launch-open-video-button"
 								className={`${hudIconBtnClasses} ${styles.electronNoDrag}`}
 								onClick={openVideoFile}
 							>
@@ -639,6 +644,7 @@ export function LaunchWindow() {
 						{/* Open project */}
 						<Tooltip content={t("tooltips.openProject")}>
 							<button
+								data-testid="launch-open-project-button"
 								className={`${hudIconBtnClasses} ${styles.electronNoDrag}`}
 								onClick={openProjectFile}
 							>
diff --git a/src/components/launch/SourceSelector.tsx b/src/components/launch/SourceSelector.tsx
index 1a0675a..f3ae989 100644
--- a/src/components/launch/SourceSelector.tsx
+++ b/src/components/launch/SourceSelector.tsx
@@ -145,6 +145,7 @@ export function SourceSelector() {
 			</div>
 			<div className="flex justify-center gap-2 border-t border-white/[0.06] p-3">
 				<Button
+					data-testid="source-selector-cancel-button"
 					variant="ghost"
 					onClick={() => window.close()}
 					className="h-8 rounded-lg px-5 text-[11px] text-zinc-400 transition-transform duration-150 hover:bg-white/5 hover:text-white active:scale-95"
@@ -152,6 +153,7 @@ export function SourceSelector() {
 					{tc("actions.cancel")}
 				</Button>
 				<Button
+					data-testid="source-selector-share-button"
 					onClick={handleShare}
 					disabled={!selectedSource}
 					className="h-8 rounded-lg bg-[#34B27B] px-5 text-[11px] font-semibold text-white transition-transform duration-150 hover:bg-[#34B27B]/85 active:scale-95 disabled:bg-zinc-700 disabled:opacity-30"
diff --git a/tests/e2e/windows-native-checklist.spec.ts b/tests/e2e/windows-native-checklist.spec.ts
new file mode 100644
index 0000000..865cce2
--- /dev/null
+++ b/tests/e2e/windows-native-checklist.spec.ts
@@ -0,0 +1,306 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import type { Page } from "@playwright/test";
+import { _electron as electron, expect, test } from "@playwright/test";
+import { NATIVE_BRIDGE_CHANNEL, NATIVE_BRIDGE_VERSION } from "../../src/native/contracts";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const ROOT = path.join(__dirname, "../..");
+const MAIN_JS = path.join(ROOT, "dist-electron/main.js");
+const TEST_VIDEO = path.join(__dirname, "../fixtures/sample.webm");
+
+async function launchApp() {
+	const testUserDataDir = fs.mkdtempSync(path.join(os.tmpdir(), "openscreen-e2e-"));
+	const app = await electron.launch({
+		args: [
+			MAIN_JS,
+			"--no-sandbox",
+			"--enable-unsafe-swiftshader",
+			`--user-data-dir=${testUserDataDir}`,
+		],
+		env: {
+			...process.env,
+			ELECTRON_USER_DATA_DIR: testUserDataDir,
+			HEADLESS: process.env["HEADLESS"] ?? "true",
+		},
+	});
+
+	const childProcess = app.process();
+	childProcess.stdout?.on("data", (d) => process.stdout.write(`[electron] ${d}`));
+	childProcess.stderr?.on("data", (d) => process.stderr.write(`[electron] ${d}`));
+	(
+		app as ElectronApplication & {
+			__testUserDataDir?: string;
+			__childProcess?: ReturnType<ElectronApplication["process"]>;
+		}
+	).__testUserDataDir = testUserDataDir;
+	(
+		app as ElectronApplication & {
+			__testUserDataDir?: string;
+			__childProcess?: ReturnType<ElectronApplication["process"]>;
+		}
+	).__childProcess = childProcess;
+
+	return app;
+}
+
+async function closeApp(app: ElectronApplication) {
+	const childProcess = (
+		app as ElectronApplication & {
+			__childProcess?: ReturnType<ElectronApplication["process"]>;
+		}
+	).__childProcess;
+	await Promise.race([app.close(), new Promise<void>((resolve) => setTimeout(resolve, 5_000))]);
+	if (childProcess && !childProcess.killed) {
+		childProcess.kill();
+	}
+	const testUserDataDir = (app as ElectronApplication & { __testUserDataDir?: string })
+		.__testUserDataDir;
+	if (testUserDataDir && fs.existsSync(testUserDataDir)) {
+		fs.rmSync(testUserDataDir, { recursive: true, force: true });
+	}
+}
+
+async function copyFixtureToRecordings(app: ElectronApplication, fileName: string) {
+	const userDataDir = await app.evaluate(({ app: electronApp }) => {
+		return electronApp.getPath("userData");
+	});
+	const recordingsDir = path.join(userDataDir, "recordings");
+	const targetPath = path.join(recordingsDir, fileName);
+	fs.mkdirSync(recordingsDir, { recursive: true });
+	fs.copyFileSync(TEST_VIDEO, targetPath);
+	return targetPath;
+}
+
+async function dismissLanguagePrompt(page: Page) {
+	const keepCurrentLanguage = page
+		.getByRole("button")
+		.filter({ hasText: /Keep current language|Conserver la langue actuelle/ });
+	if ((await keepCurrentLanguage.count()) > 0) {
+		await keepCurrentLanguage.click();
+	}
+}
+
+type ElectronApplication = Awaited<ReturnType<typeof electron.launch>>;
+
+test.describe("Windows native checklist smoke tests", () => {
+	test.skip(process.platform !== "win32", "Windows native capture is Windows-only.");
+
+	test("source selector opens, lists thumbnails, and selects a screen/window source", async () => {
+		const app = await launchApp();
+
+		try {
+			const hudWindow = await app.firstWindow({ timeout: 60_000 });
+			await hudWindow.waitForLoadState("domcontentloaded");
+			await dismissLanguagePrompt(hudWindow);
+
+			await expect(hudWindow.getByTestId("launch-record-button")).toBeDisabled();
+			await expect(hudWindow.getByTestId("launch-source-selector-button")).toBeVisible();
+			await expect(hudWindow.getByTestId("launch-system-audio-button")).toBeEnabled();
+			await expect(hudWindow.getByTestId("launch-microphone-button")).toBeEnabled();
+
+			await hudWindow.getByTestId("launch-source-selector-button").click();
+			const sourceWindow = await app.waitForEvent("window", {
+				predicate: (w) => w.url().includes("windowType=source-selector"),
+				timeout: 15_000,
+			});
+			await sourceWindow.waitForLoadState("domcontentloaded");
+
+			const cards = sourceWindow.getByTestId("source-selector-card");
+			await expect.poll(() => cards.count(), { timeout: 15_000 }).toBeGreaterThan(0);
+
+			const thumbnails = await cards.locator("img").evaluateAll((imgs) =>
+				imgs.map((img) => ({
+					alt: img.getAttribute("alt"),
+					src: img.getAttribute("src"),
+				})),
+			);
+			expect(thumbnails.some((item) => item.alt && item.src?.startsWith("data:image"))).toBe(true);
+
+			const hasScreen = await sourceWindow
+				.locator('[data-testid="source-selector-card"][data-source-kind="screen"]')
+				.count()
+				.then((count) => count > 0);
+			const hasWindow = await sourceWindow
+				.locator('[data-testid="source-selector-card"][data-source-kind="window"]')
+				.count()
+				.then((count) => count > 0);
+			expect(hasScreen || hasWindow).toBe(true);
+
+			await expect(sourceWindow.getByTestId("source-selector-share-button")).toBeDisabled();
+			await cards.first().click();
+			await expect(sourceWindow.getByTestId("source-selector-share-button")).toBeEnabled();
+			await sourceWindow.getByTestId("source-selector-share-button").click();
+
+			await expect
+				.poll(
+					() =>
+						hudWindow.evaluate(async () => {
+							return await window.electronAPI.getSelectedSource();
+						}),
+					{ timeout: 10_000 },
+				)
+				.not.toBeNull();
+			await expect(hudWindow.getByTestId("launch-record-button")).toBeEnabled();
+		} finally {
+			await closeApp(app);
+		}
+	});
+
+	test("launch window opens an existing video into the editor and playback controls respond", async () => {
+		const app = await launchApp();
+		let testVideoInRecordings = "";
+
+		try {
+			const hudWindow = await app.firstWindow({ timeout: 60_000 });
+			await hudWindow.waitForLoadState("domcontentloaded");
+			await dismissLanguagePrompt(hudWindow);
+			testVideoInRecordings = await copyFixtureToRecordings(app, "checklist-sample.webm");
+
+			await app.evaluate(({ ipcMain }, videoPath) => {
+				ipcMain.removeHandler("open-video-file-picker");
+				ipcMain.handle("open-video-file-picker", () => ({
+					success: true,
+					path: videoPath,
+				}));
+			}, testVideoInRecordings);
+
+			await hudWindow.getByTestId("launch-open-video-button").click();
+			const editorWindow = await app.waitForEvent("window", {
+				predicate: (w) => w.url().includes("windowType=editor"),
+				timeout: 15_000,
+			});
+			await editorWindow.waitForLoadState("domcontentloaded");
+			await expect(editorWindow.getByText("Loading video...")).not.toBeVisible({ timeout: 20_000 });
+
+			const playButton = editorWindow.locator(
+				'button[aria-label="Play"], button[aria-label="Lire"]',
+			);
+			await expect(playButton).toBeVisible({ timeout: 10_000 });
+			await playButton.click();
+
+			const seekInput = editorWindow.locator('input[type="range"]').first();
+			await expect(seekInput).toBeVisible();
+			await seekInput.evaluate((input) => {
+				const range = input as HTMLInputElement;
+				range.value = "0.25";
+				range.dispatchEvent(new Event("input", { bubbles: true }));
+				range.dispatchEvent(new Event("change", { bubbles: true }));
+			});
+			await expect.poll(() => seekInput.inputValue(), { timeout: 10_000 }).not.toBe("0");
+
+			await expect(
+				editorWindow.getByText("Background").or(editorWindow.getByText("Arrière-plan")),
+			).toBeVisible();
+			await expect(editorWindow.getByTestId("testId-export-button")).toBeVisible();
+		} finally {
+			await closeApp(app);
+			if (testVideoInRecordings && fs.existsSync(testVideoInRecordings)) {
+				fs.unlinkSync(testVideoInRecordings);
+			}
+		}
+	});
+
+	test("launch window opens an existing project into the editor", async () => {
+		const app = await launchApp();
+		let testVideoInRecordings = "";
+		let projectPath = "";
+
+		try {
+			const hudWindow = await app.firstWindow({ timeout: 60_000 });
+			await hudWindow.waitForLoadState("domcontentloaded");
+			await dismissLanguagePrompt(hudWindow);
+			testVideoInRecordings = await copyFixtureToRecordings(app, "checklist-project-sample.webm");
+			projectPath = path.join(os.tmpdir(), `openscreen-checklist-${Date.now()}.openscreen`);
+			const project = {
+				version: 2,
+				videoPath: testVideoInRecordings,
+				editor: {},
+			};
+			fs.writeFileSync(projectPath, JSON.stringify(project), "utf-8");
+
+			await app.evaluate(
+				({ ipcMain }, payload) => {
+					ipcMain.removeHandler(payload.nativeBridgeChannel);
+					ipcMain.handle(payload.nativeBridgeChannel, (_event, request) => {
+						const success = (data: unknown) => ({
+							ok: true,
+							data,
+							meta: {
+								version: payload.nativeBridgeVersion,
+								requestId: request.requestId ?? "checklist-project-load",
+								timestampMs: Date.now(),
+							},
+						});
+
+						if (request.domain === "project" && request.action === "loadProjectFile") {
+							return success({
+								success: true,
+								path: payload.projectPath,
+								project: payload.project,
+							});
+						}
+						if (request.domain === "project" && request.action === "loadCurrentProjectFile") {
+							return success({ success: false, canceled: true });
+						}
+						if (request.domain === "project" && request.action === "getCurrentVideoPath") {
+							return success({ success: true, path: payload.videoPath });
+						}
+						if (request.domain === "system" && request.action === "getPlatform") {
+							return success("win32");
+						}
+						if (request.domain === "system" && request.action === "getAssetBasePath") {
+							return success(null);
+						}
+						if (request.domain === "cursor" && request.action === "getRecordingData") {
+							return success({ version: 2, provider: "none", samples: [], assets: [] });
+						}
+						if (request.domain === "cursor" && request.action === "getTelemetry") {
+							return success([]);
+						}
+
+						return {
+							ok: false,
+							error: {
+								code: "UNSUPPORTED_ACTION",
+								message: `Unexpected native bridge request in test: ${request.domain}.${request.action}`,
+								retryable: false,
+							},
+							meta: {
+								version: payload.nativeBridgeVersion,
+								requestId: request.requestId ?? "checklist-project-load",
+								timestampMs: Date.now(),
+							},
+						};
+					});
+				},
+				{
+					projectPath,
+					project,
+					videoPath: testVideoInRecordings,
+					nativeBridgeChannel: NATIVE_BRIDGE_CHANNEL,
+					nativeBridgeVersion: NATIVE_BRIDGE_VERSION,
+				},
+			);
+
+			await hudWindow.getByTestId("launch-open-project-button").click();
+			const editorWindow = await app.waitForEvent("window", {
+				predicate: (w) => w.url().includes("windowType=editor"),
+				timeout: 15_000,
+			});
+			await editorWindow.waitForLoadState("domcontentloaded");
+			await expect(editorWindow.getByText("Loading video...")).not.toBeVisible({ timeout: 20_000 });
+			await expect(editorWindow.getByTestId("testId-export-button")).toBeVisible();
+		} finally {
+			await closeApp(app);
+			if (testVideoInRecordings && fs.existsSync(testVideoInRecordings)) {
+				fs.unlinkSync(testVideoInRecordings);
+			}
+			if (projectPath && fs.existsSync(projectPath)) {
+				fs.unlinkSync(projectPath);
+			}
+		}
+	});
+});