diff --git a/packages/cli/src/server/desktopRoutes.test.ts b/packages/cli/src/server/desktopRoutes.test.ts
index c583de0aac..eaa8f0d974 100644
--- a/packages/cli/src/server/desktopRoutes.test.ts
+++ b/packages/cli/src/server/desktopRoutes.test.ts
@@ -45,10 +45,10 @@ describe("open-in-desktop routes", () => {
     });
   });
 
-  it("shows the button where the app is installed even without a download (Windows)", async () => {
+  it("shows the button where the app is installed even without a download (FreeBSD)", async () => {
     const get = async (installed: boolean) =>
       (
-        await server(true, { platform: "win32", installed: () => installed }).app.request(
+        await server(true, { platform: "freebsd", installed: () => installed }).app.request(
           "/api/open-in-desktop",
         )
       ).json();
@@ -56,12 +56,30 @@ describe("open-in-desktop routes", () => {
       available: true,
       handoff: true,
       downloadUrl: null,
-      os: "win32",
+      os: "freebsd",
       installed: true,
     });
     expect(await get(false)).toMatchObject({ available: false });
   });
 
+  it("offers the Windows download, and the hand-off once the app is installed", async () => {
+    const get = async (installed: boolean) =>
+      (
+        await server(true, { platform: "win32", installed: () => installed }).app.request(
+          "/api/open-in-desktop",
+        )
+      ).json();
+    const downloadUrl = "https://hyperframes.dev/studio/download?os=windows";
+    expect(await get(false)).toEqual({
+      available: true,
+      handoff: false,
+      downloadUrl,
+      os: "win32",
+      installed: false,
+    });
+    expect(await get(true)).toMatchObject({ available: true, handoff: true, downloadUrl });
+  });
+
   it("offers the hand-off only where the app is installed, so a press without it goes to the download", async () => {
     const get = async (installed: boolean) =>
       (
diff --git a/packages/cli/src/utils/desktopApp.test.ts b/packages/cli/src/utils/desktopApp.test.ts
index 038a6de2be..32298ca899 100644
--- a/packages/cli/src/utils/desktopApp.test.ts
+++ b/packages/cli/src/utils/desktopApp.test.ts
@@ -143,7 +143,7 @@ describe("openInDesktop on Windows", () => {
     expect(missing).toEqual({
       opened: false,
       reason: "not-installed",
-      downloadUrl: "https://hyperframes.dev/studio",
+      downloadUrl: `${MAC_DOWNLOAD}?os=windows`,
     });
     const failed = openInDesktop(FILM, { ...WIN, exists: () => true, launch: () => false });
     expect(failed).toMatchObject({ opened: false, reason: "open-failed" });
@@ -327,12 +327,20 @@ describe("desktopHint", () => {
     expect(desktopHint(process.cwd(), { ...mac, ready: true, installed: false })).toBe(MAC_HINT);
   });
 
-  it("offers the Linux build on Linux, and nothing on Windows without the app", () => {
+  it("offers the Linux and Windows builds there, and nothing where there is no build", () => {
     expect(desktopHint(process.cwd(), { env: {}, platform: "linux", installed: false })).toBe(
       `Keep editing by chatting with Framey in the HyperFrames desktop app → ${MAC_DOWNLOAD}?os=linux`,
     );
-    expect(desktopHint(process.cwd(), { env: {}, platform: "win32", installed: false })).toBeNull();
-    expect(desktopHint(process.cwd(), { env: {}, platform: "win32", ready: true })).toBeNull();
+    const windowsHint = `Keep editing by chatting with Framey in the HyperFrames desktop app → ${MAC_DOWNLOAD}?os=windows`;
+    expect(desktopHint(process.cwd(), { env: {}, platform: "win32", installed: false })).toBe(
+      windowsHint,
+    );
+    expect(desktopHint(process.cwd(), { env: {}, platform: "win32", ready: true })).toBe(
+      windowsHint,
+    );
+    expect(
+      desktopHint(process.cwd(), { env: {}, platform: "freebsd", installed: false }),
+    ).toBeNull();
   });
 
   it("points an installed Windows app to `hyperframes open`", () => {
diff --git a/packages/cli/src/utils/desktopApp.ts b/packages/cli/src/utils/desktopApp.ts
index 64cd7dcdfa..652577fd77 100644
--- a/packages/cli/src/utils/desktopApp.ts
+++ b/packages/cli/src/utils/desktopApp.ts
@@ -15,9 +15,10 @@ const STUDIO_PAGE = "https://hyperframes.dev/studio";
 const DOWNLOADS: Partial<Record<NodeJS.Platform, string>> = {
   darwin: `${STUDIO_PAGE}/download`,
   linux: `${STUDIO_PAGE}/download?os=linux`,
+  win32: `${STUDIO_PAGE}/download?os=windows`,
 };
 
-/** This machine's build of the app; null where there is none yet (Windows). */
+/** This machine's build of the app; null where there is none. */
 export const desktopDownloadUrl = (platform = process.platform): string | null =>
   DOWNLOADS[platform] ?? null;
 
diff --git a/packages/studio/src/components/DesktopGuideCard.tsx b/packages/studio/src/components/DesktopGuideCard.tsx
index cc5c76dfde..9971905a30 100644
--- a/packages/studio/src/components/DesktopGuideCard.tsx
+++ b/packages/studio/src/components/DesktopGuideCard.tsx
@@ -15,7 +15,7 @@ export type DesktopRoute = {
 
 /** The OS for the download, and what "this …" calls the machine. */
 const platformName = (os: string): string =>
-  os === "darwin" ? "Mac" : os === "linux" ? "Linux" : "your computer";
+  os === "darwin" ? "Mac" : os === "linux" ? "Linux" : os === "win32" ? "Windows" : "your computer";
 const deviceName = (os: string): string => (os === "darwin" ? "Mac" : "computer");
 
 const NOTE = "mt-0.5 text-step-12 text-text-2 text-pretty";
diff --git a/packages/studio/src/components/OpenInDesktopButton.dom.test.tsx b/packages/studio/src/components/OpenInDesktopButton.dom.test.tsx
index 7dfc264655..86f07f131a 100644
--- a/packages/studio/src/components/OpenInDesktopButton.dom.test.tsx
+++ b/packages/studio/src/components/OpenInDesktopButton.dom.test.tsx
@@ -103,19 +103,19 @@ it("stays hidden where the server has no hand-off (the desktop's own Studio)", a
   expect(button()).toBeNull();
 });
 
-it("stays hidden when the app has no build for this machine (Windows)", async () => {
+it("stays hidden when the app has no build for this machine (FreeBSD)", async () => {
   serve(Response.json({ available: false, handoff: true, downloadUrl: null }));
   await mount();
   expect(button()).toBeNull();
 });
 
-it("with the app installed but no download (Windows), shows only once the app can take the project", async () => {
+it("with the app installed but no download (FreeBSD), shows only once the app can take the project", async () => {
   serve(Response.json({ available: true, handoff: false, downloadUrl: null }));
   await mount();
   expect(button()).toBeNull();
 });
 
-it("opens the project in an installed app that has no download (Windows)", async () => {
+it("opens the project in an installed app that has no download (FreeBSD)", async () => {
   serve(Response.json({ available: true, handoff: true, downloadUrl: null }), {
     opened: true,
     app: "the HyperFrames desktop app",
@@ -381,6 +381,28 @@ it("where the app is installed but cannot take a project (Linux), step 3 shows t
   expect(posts).toBe(0);
 });
 
+it("on Windows, step 1 names the Windows download and opens it tagged", async () => {
+  const opened: string[] = [];
+  vi.stubGlobal("open", (url: string) => (opened.push(url), { opener: {} }));
+  serve(
+    Response.json({
+      available: true,
+      handoff: false,
+      downloadUrl: `${DOWNLOAD}?os=windows`,
+      os: "win32",
+      installed: false,
+    }),
+  );
+  await mount();
+  expect(button()).not.toBeNull();
+  await act(async () => button()!.click());
+  await act(async () => cardButton("Download for Windows")!.click());
+  expect(opened).toEqual([tagged(`${DOWNLOAD}?os=windows`)]);
+  expect(events("desktop_cta_eligibility")).toEqual([
+    { eligibility: "download", os: "win32", app_installed: false, download_available: true },
+  ]);
+});
+
 it("counts where the button can show, the app here, and platforms with no app", async () => {
   serve(
     Response.json({
@@ -402,7 +424,7 @@ it("counts where the button can show, the app here, and platforms with no app",
       available: false,
       handoff: false,
       downloadUrl: null,
-      os: "win32",
+      os: "freebsd",
       installed: false,
     }),
   );
@@ -411,7 +433,7 @@ it("counts where the button can show, the app here, and platforms with no app",
   expect(events("desktop_cta_eligibility")).toEqual([
     {
       eligibility: "no_app_for_platform",
-      os: "win32",
+      os: "freebsd",
       app_installed: false,
       download_available: false,
     },