diff --git a/packaging/windows/installer.nsh b/packaging/windows/installer.nsh
index 14b5255..ed4a844 100644
--- a/packaging/windows/installer.nsh
+++ b/packaging/windows/installer.nsh
@@ -311,21 +311,22 @@ Function restartFarmControlAfterUpdate
   !insertmacro progressSuccess
 
   !insertmacro progressStatus "Waiting for Farm Control to close..."
-  Sleep 1500
+  Sleep 2000
 
   restart_wait_loop:
     ExecWait 'cmd.exe /c tasklist /FI "IMAGENAME eq FarmControl.exe" 2>nul | find /I "FarmControl.exe"' $R0
     ${If} $R0 == 0
-      Sleep 1000
+      Sleep 1500
       Goto restart_wait_loop
     ${EndIf}
     ExecWait 'cmd.exe /c tasklist /FI "IMAGENAME eq launcher.exe" 2>nul | find /I "launcher.exe"' $R0
     ${If} $R0 == 0
-      Sleep 1000
+      Sleep 1500
       Goto restart_wait_loop
     ${EndIf}
 
   ${If} $IsInAppUpdate == "1"
+    Sleep 1000
     !insertmacro swapUpdateStaging
   ${EndIf}
 
diff --git a/src/desktop/appupdate.js b/src/desktop/appupdate.js
index 8520d07..6edfd8a 100644
--- a/src/desktop/appupdate.js
+++ b/src/desktop/appupdate.js
@@ -1,137 +1,136 @@
-import { createWriteStream, promises as fs } from "node:fs";
-import http from "node:http";
-import https from "node:https";
-import os from "node:os";
-import path from "node:path";
-import process from "node:process";
-import { Utils } from "electrobun/bun";
-import { launchMacInstaller } from "./macappupdate.js";
-import { launchWindowsInstaller } from "./winappupdate.js";
-import { checkForDuplicateInstallations } from "./check-duplicate-installations.js";
-import { scheduleAppRestart } from "./updater-runner.js";
-import { getAppSettings, setAppSettings } from "./store.js";
+import { createWriteStream, promises as fs } from 'node:fs'
+import http from 'node:http'
+import https from 'node:https'
+import os from 'node:os'
+import path from 'node:path'
+import process from 'node:process'
+import { Utils } from 'electrobun/bun'
+import { launchMacInstaller } from './macappupdate.js'
+import { launchWindowsInstaller } from './winappupdate.js'
+import { checkForDuplicateInstallations } from './check-duplicate-installations.js'
+import { scheduleAppRestart } from './updater-runner.js'
+import { getAppSettings, setAppSettings } from './store.js'
 
 const SUPPORTED_TARGETS = {
   darwin: {
-    extension: ".pkg",
-    osMatchers: ["darwin", "mac", "macos", "osx"],
+    extension: '.pkg',
+    osMatchers: ['darwin', 'mac', 'macos', 'osx']
   },
   win32: {
-    extension: ".exe",
-    osMatchers: ["win32", "win", "windows"],
-  },
-};
+    extension: '.exe',
+    osMatchers: ['win32', 'win', 'windows']
+  }
+}
 
-const DEFAULT_UPDATE_ENGINE = "native";
+const DEFAULT_UPDATE_ENGINE = 'native'
 
-let runningUpdate = null;
+let runningUpdate = null
 
 const getArtifactName = (artifact) =>
-  String(artifact?.fileName || artifact?.relativePath || artifact?.url || "");
+  String(artifact?.fileName || artifact?.relativePath || artifact?.url || '')
 
 const normalizeArch = (arch) => {
-  if (arch === "x64" || arch === "amd64") return "x64";
-  if (arch === "arm64" || arch === "aarch64") return "arm64";
-  return arch;
-};
+  if (arch === 'x64' || arch === 'amd64') return 'x64'
+  if (arch === 'arm64' || arch === 'aarch64') return 'arm64'
+  return arch
+}
 
 const normalizeEngine = (engine) => {
-  const value = String(engine || "")
+  const value = String(engine || '')
     .trim()
-    .toLowerCase();
+    .toLowerCase()
 
-  if (value === "chromium" || value === "cef") return "chromium";
-  if (value === "native") return "native";
-  return null;
-};
+  if (value === 'chromium' || value === 'cef') return 'chromium'
+  if (value === 'native') return 'native'
+  return null
+}
 
 const artifactIsChromium = (artifact) => {
   const explicit = String(
-    artifact?.engine || artifact?.renderer || "",
-  ).toLowerCase();
+    artifact?.engine || artifact?.renderer || ''
+  ).toLowerCase()
 
-  if (explicit === "cef" || explicit === "chromium") return true;
-  if (explicit === "native") return false;
+  if (explicit === 'cef' || explicit === 'chromium') return true
+  if (explicit === 'native') return false
 
-  const name = getArtifactName(artifact).toLowerCase();
-  return /[-_.]cef(?:[-_.]|$)/.test(name);
-};
+  const name = getArtifactName(artifact).toLowerCase()
+  return /[-_.]cef(?:[-_.]|$)/.test(name)
+}
 
 const artifactMatchesEngine = (artifact, engine) => {
-  const wantsChromium = normalizeEngine(engine) === "chromium";
-  return artifactIsChromium(artifact) === wantsChromium;
-};
+  const wantsChromium = normalizeEngine(engine) === 'chromium'
+  return artifactIsChromium(artifact) === wantsChromium
+}
 
 const artifactMatchesPlatform = (artifact, target, platform, arch) => {
-  const name = getArtifactName(artifact).toLowerCase();
-  const normalizedArch = normalizeArch(arch);
-  const artifactArch = normalizeArch(String(artifact?.arch || "").toLowerCase());
+  const name = getArtifactName(artifact).toLowerCase()
+  const normalizedArch = normalizeArch(arch)
+  const artifactArch = normalizeArch(String(artifact?.arch || '').toLowerCase())
   const artifactPlatform = String(
-    artifact?.platform || artifact?.os || artifact?.target || "",
-  ).toLowerCase();
+    artifact?.platform || artifact?.os || artifact?.target || ''
+  ).toLowerCase()
 
-  if (!name.endsWith(target.extension)) return false;
-  if (!artifact?.url) return false;
+  if (!name.endsWith(target.extension)) return false
+  if (!artifact?.url) return false
 
   const matchesArch =
     artifactArch === normalizedArch ||
     name.includes(`-${normalizedArch}`) ||
     name.includes(`_${normalizedArch}`) ||
     name.includes(`.${normalizedArch}.`) ||
-    name.includes(normalizedArch);
+    name.includes(normalizedArch)
 
   const matchesOs =
     !artifactPlatform ||
     target.osMatchers.includes(artifactPlatform) ||
     target.osMatchers.some((matcher) => name.includes(matcher)) ||
-    (platform === "darwin" && name.includes("mac")) ||
-    (platform === "win32" && name.includes("win"));
+    (platform === 'darwin' && name.includes('mac')) ||
+    (platform === 'win32' && name.includes('win'))
 
-  return matchesArch && matchesOs;
-};
+  return matchesArch && matchesOs
+}
 
 const selectUpdateArtifact = (
   update,
   platform = process.platform,
-  arch = process.arch,
+  arch = process.arch
 ) => {
-  const target = SUPPORTED_TARGETS[platform];
+  const target = SUPPORTED_TARGETS[platform]
   if (!target) {
-    throw new Error(`App updates are not supported on ${platform}.`);
+    throw new Error(`App updates are not supported on ${platform}.`)
   }
 
-  const engine =
-    normalizeEngine(update?.engine) || DEFAULT_UPDATE_ENGINE;
-  const artifacts = Array.isArray(update?.artifacts) ? update.artifacts : [];
+  const engine = normalizeEngine(update?.engine) || DEFAULT_UPDATE_ENGINE
+  const artifacts = Array.isArray(update?.artifacts) ? update.artifacts : []
   const matchingArtifact = artifacts.find(
     (artifact) =>
       artifactMatchesPlatform(artifact, target, platform, arch) &&
-      artifactMatchesEngine(artifact, engine),
-  );
+      artifactMatchesEngine(artifact, engine)
+  )
 
   if (!matchingArtifact) {
-    const engineLabel = engine === "chromium" ? "Chromium (cef)" : "Native";
+    const engineLabel = engine === 'chromium' ? 'Chromium (cef)' : 'Native'
     throw new Error(
-      `No ${target.extension} ${engineLabel} update artifact found for ${platform}/${arch}.`,
-    );
+      `No ${target.extension} ${engineLabel} update artifact found for ${platform}/${arch}.`
+    )
   }
 
-  return matchingArtifact;
-};
+  return matchingArtifact
+}
 
-const getInstallErrorMessage = (error, output = "") => {
-  const combined = `${output}\n${error?.message || ""}`.trim();
+const getInstallErrorMessage = (error, output = '') => {
+  const combined = `${output}\n${error?.message || ''}`.trim()
 
   if (
     /cancel/i.test(combined) ||
     /did not grant permission/i.test(combined) ||
     /user canceled/i.test(combined)
   ) {
-    return "Update installation was cancelled.";
+    return 'Update installation was cancelled.'
   }
 
   if (/incorrect/i.test(combined)) {
-    return "The administrator password was incorrect.";
+    return 'The administrator password was incorrect.'
   }
 
   if (
@@ -139,124 +138,124 @@ const getInstallErrorMessage = (error, output = "") => {
     /forbidden by system policy/i.test(combined) ||
     /Non-assigned apps are disabled/i.test(combined)
   ) {
-    return "Update installation was blocked by system policy.";
+    return 'Update installation was blocked by system policy.'
   }
 
-  return combined || "Failed to install update.";
-};
+  return combined || 'Failed to install update.'
+}
 
 const getDownloadUrl = (url, redirectCount = 0) =>
   new Promise((resolve, reject) => {
     if (redirectCount > 5) {
-      reject(new Error("Too many redirects while downloading update."));
-      return;
+      reject(new Error('Too many redirects while downloading update.'))
+      return
     }
 
-    const parsedUrl = new URL(url);
-    const client = parsedUrl.protocol === "https:" ? https : http;
+    const parsedUrl = new URL(url)
+    const client = parsedUrl.protocol === 'https:' ? https : http
     const request = client.get(parsedUrl, (response) => {
-      const location = response.headers.location;
+      const location = response.headers.location
 
       if (response.statusCode >= 300 && response.statusCode < 400 && location) {
-        response.resume();
+        response.resume()
         resolve(
           getDownloadUrl(
             new URL(location, parsedUrl).toString(),
-            redirectCount + 1,
-          ),
-        );
-        return;
+            redirectCount + 1
+          )
+        )
+        return
       }
 
-      resolve({ response, url: parsedUrl.toString() });
-    });
+      resolve({ response, url: parsedUrl.toString() })
+    })
 
-    request.on("error", reject);
-  });
+    request.on('error', reject)
+  })
 
 const downloadArtifact = async (artifact, destinationPath, sendProgress) => {
-  const { response } = await getDownloadUrl(artifact.url);
+  const { response } = await getDownloadUrl(artifact.url)
 
   if (response.statusCode < 200 || response.statusCode >= 300) {
-    response.resume();
-    throw new Error(`Update download failed with HTTP ${response.statusCode}.`);
+    response.resume()
+    throw new Error(`Update download failed with HTTP ${response.statusCode}.`)
   }
 
   const totalBytes =
-    Number.parseInt(response.headers["content-length"], 10) || 0;
-  let downloadedBytes = 0;
+    Number.parseInt(response.headers['content-length'], 10) || 0
+  let downloadedBytes = 0
 
   await new Promise((resolve, reject) => {
-    const output = createWriteStream(destinationPath);
+    const output = createWriteStream(destinationPath)
 
-    response.on("data", (chunk) => {
-      downloadedBytes += chunk.length;
+    response.on('data', (chunk) => {
+      downloadedBytes += chunk.length
       const percent = totalBytes
         ? Math.round((downloadedBytes / totalBytes) * 100)
-        : null;
+        : null
 
       sendProgress({
-        phase: "downloading",
+        phase: 'downloading',
         percent,
         downloadedBytes,
         totalBytes,
         message: totalBytes
           ? `Downloading update (${percent}%)`
-          : "Downloading update",
-      });
-    });
+          : 'Downloading update'
+      })
+    })
 
-    response.on("error", reject);
-    output.on("error", reject);
-    output.on("finish", resolve);
-    response.pipe(output);
-  });
-};
+    response.on('error', reject)
+    output.on('error', reject)
+    output.on('finish', resolve)
+    response.pipe(output)
+  })
+}
 
 const getRunningEngine = (mainWindow) =>
-  mainWindow?.renderer === "cef" ? "chromium" : "native";
+  mainWindow?.renderer === 'cef' ? 'chromium' : 'native'
 
 const getRunningAppState = (mainWindow, settings) => ({
   version: process.env.ELECTROBUN_VERSION || null,
   branch: settings?.appUpdateRunningBranch || null,
-  engine: getRunningEngine(mainWindow),
-});
+  engine: getRunningEngine(mainWindow)
+})
 
 // Snapshot the running version/branch/engine so the next launch can tell
 // whether an update actually completed.
 const persistCurrentAppState = async (mainWindow) => {
   try {
-    const settings = await getAppSettings();
+    const settings = await getAppSettings()
     await setAppSettings({
       ...settings,
-      current: getRunningAppState(mainWindow, settings),
-    });
+      current: getRunningAppState(mainWindow, settings)
+    })
   } catch (error) {
-    console.warn("[app-update] Failed to persist current app state.", error);
+    console.warn('[app-update] Failed to persist current app state.', error)
   }
-};
+}
 
 // Ignore missing values: a field only counts as changed when it was recorded
 // both before and after the update.
 const stateValueChanged = (previous, next) =>
-  Boolean(previous) && Boolean(next) && previous !== next;
+  Boolean(previous) && Boolean(next) && previous !== next
 
-let completedUpdateResult = null;
+let completedUpdateResult = null
 
 export const checkForCompletedUpdate = async (mainWindow) => {
   // Cache per process so repeated renderer calls (e.g. remounts) get the same
   // answer instead of a false negative after `current` has been rewritten.
-  if (completedUpdateResult) return completedUpdateResult;
+  if (completedUpdateResult) return completedUpdateResult
 
   try {
-    const settings = await getAppSettings();
+    const settings = await getAppSettings()
     const previous =
-      settings?.current && typeof settings.current === "object"
+      settings?.current && typeof settings.current === 'object'
         ? settings.current
-        : null;
-    const current = getRunningAppState(mainWindow, settings);
+        : null
+    const current = getRunningAppState(mainWindow, settings)
 
-    await setAppSettings({ ...settings, current });
+    await setAppSettings({ ...settings, current })
 
     const updated =
       Boolean(previous) &&
@@ -264,137 +263,135 @@ export const checkForCompletedUpdate = async (mainWindow) => {
         stateValueChanged(previous.branch, current.branch) ||
         stateValueChanged(
           normalizeEngine(previous.engine),
-          normalizeEngine(current.engine),
-        ));
+          normalizeEngine(current.engine)
+        ))
 
-    const duplicates = checkForDuplicateInstallations();
+    const duplicates = checkForDuplicateInstallations()
 
-    completedUpdateResult = { updated, previous, current, duplicates };
+    completedUpdateResult = { updated, previous, current, duplicates }
   } catch (error) {
-    console.warn("[app-update] Failed to check for a completed update.", error);
+    console.warn('[app-update] Failed to check for a completed update.', error)
     completedUpdateResult = {
       updated: false,
       previous: null,
       current: null,
-      duplicates: checkForDuplicateInstallations(),
-    };
+      duplicates: checkForDuplicateInstallations()
+    }
   }
 
-  return completedUpdateResult;
-};
+  return completedUpdateResult
+}
 
 const persistInstalledUpdateSettings = async (update) => {
   try {
-    const settings = await getAppSettings();
+    const settings = await getAppSettings()
     const engine =
       normalizeEngine(update?.engine) ||
       normalizeEngine(settings?.appUpdateEngine) ||
-      DEFAULT_UPDATE_ENGINE;
+      DEFAULT_UPDATE_ENGINE
 
     await setAppSettings({
       ...settings,
       appUpdateEngine: engine,
-      ...(update?.branch
-        ? { appUpdateRunningBranch: update.branch }
-        : {}),
-    });
+      ...(update?.branch ? { appUpdateRunningBranch: update.branch } : {})
+    })
   } catch (error) {
     console.warn(
-      "[app-update] Failed to persist installed update settings.",
-      error,
-    );
+      '[app-update] Failed to persist installed update settings.',
+      error
+    )
   }
-};
+}
 
 const launchInstallerAndRestart = async (
   mainWindow,
   installerPath,
   sendProgress,
-  update,
+  update
 ) => {
-  const installerHelpers = { sendProgress, getInstallErrorMessage };
+  const installerHelpers = { sendProgress, getInstallErrorMessage }
 
-  if (process.platform === "darwin") {
+  if (process.platform === 'darwin') {
     await launchMacInstaller(
       mainWindow,
       installerPath,
       sendProgress,
-      installerHelpers,
-    );
-  } else if (process.platform === "win32") {
+      installerHelpers
+    )
+  } else if (process.platform === 'win32') {
     await launchWindowsInstaller(
       mainWindow,
       installerPath,
       sendProgress,
-      installerHelpers,
-    );
+      installerHelpers
+    )
   } else {
-    throw new Error(`App updates are not supported on ${process.platform}.`);
+    throw new Error(`App updates are not supported on ${process.platform}.`)
   }
 
-  await persistInstalledUpdateSettings(update);
+  await persistInstalledUpdateSettings(update)
 
-  if (process.platform === "darwin") {
-    scheduleAppRestart();
+  if (process.platform === 'darwin') {
+    scheduleAppRestart()
   }
 
   // Give the UI a moment to show completion before the app exits.
-  await new Promise((resolve) => setTimeout(resolve, 1000));
-  Utils.quit();
-};
+  await new Promise((resolve) => setTimeout(resolve, 500))
+  Utils.quit()
+}
 
 const runAppUpdate = async (mainWindow, update, sendProgress) => {
-  await persistCurrentAppState(mainWindow);
+  await persistCurrentAppState(mainWindow)
 
-  const artifact = selectUpdateArtifact(update);
+  const artifact = selectUpdateArtifact(update)
   const tempDirectory = await fs.mkdtemp(
-    path.join(os.tmpdir(), "farmcontrol-update-"),
-  );
-  const artifactName = path.basename(getArtifactName(artifact));
-  const installerPath = path.join(tempDirectory, artifactName);
+    path.join(os.tmpdir(), 'farmcontrol-update-')
+  )
+  const artifactName = path.basename(getArtifactName(artifact))
+  const installerPath = path.join(tempDirectory, artifactName)
 
   sendProgress({
-    phase: "preparing",
+    phase: 'preparing',
     percent: 0,
     artifact,
-    message: "Preparing update download",
-  });
+    message: 'Preparing update download'
+  })
 
-  await downloadArtifact(artifact, installerPath, sendProgress);
+  await downloadArtifact(artifact, installerPath, sendProgress)
 
   sendProgress({
-    phase: "downloaded",
+    phase: 'downloaded',
     percent: 100,
     downloadedBytes: null,
     totalBytes: null,
     artifact,
-    message: "Update downloaded",
-  });
+    message: 'Update downloaded'
+  })
 
   await launchInstallerAndRestart(
     mainWindow,
     installerPath,
     sendProgress,
-    update,
-  );
-};
+    update
+  )
+}
 
 export function startAppUpdate(mainWindow, update, sendProgress) {
-  if (runningUpdate) return runningUpdate;
+  if (runningUpdate) return runningUpdate
 
   runningUpdate = runAppUpdate(mainWindow, update, sendProgress)
     .then(() => ({ ok: true }))
     .catch((error) => {
       sendProgress({
-        phase: "error",
+        phase: 'error',
         percent: null,
-        message: error?.message || "Failed to update app.",
-      });
-      throw error;
+        message: error?.message || 'Failed to update app.'
+      })
+      throw error
     })
     .finally(() => {
-      runningUpdate = null;
-    });
+      runningUpdate = null
+    })
 
-  return runningUpdate;
+  return runningUpdate
 }
diff --git a/src/desktop/winappupdate.js b/src/desktop/winappupdate.js
index 6a21d3d..b989d4b 100644
--- a/src/desktop/winappupdate.js
+++ b/src/desktop/winappupdate.js
@@ -107,7 +107,8 @@ const startWindowsInstallerProgressWatch = (
         offset = stat.size
         installerOutput += buffer.toString('utf8')
 
-        const { percent, message } = parseWindowsInstallerProgress(installerOutput)
+        const { percent, message } =
+          parseWindowsInstallerProgress(installerOutput)
         const resolvedMessage = message || 'Installing update...'
 
         if (percent !== lastPercent || resolvedMessage !== lastMessage) {
@@ -142,7 +143,7 @@ const startWindowsInstallerProgressWatch = (
     poll().catch((error) => {
       console.error('[app-update] installer log poll error:', error)
     })
-  }, 300)
+  }, 200)
 
   return async () => {
     clearInterval(intervalId)
@@ -223,12 +224,7 @@ export const launchWindowsInstaller = async (
     // /UPDATE = in-app update (stage into Farm Control.new; swap after exit)
     // /RESTARTFC = installer waits for this process to exit, swaps folders, relaunches
     // /LOG= + FARMCONTROL_INSTALL_LOG = progress log (installer:% / PHASE / STATUS)
-    const installerArgs = [
-      '/S',
-      '/UPDATE',
-      '/RESTARTFC',
-      `/LOG=${logPath}`
-    ]
+    const installerArgs = ['/S', '/UPDATE', '/RESTARTFC', `/LOG=${logPath}`]
 
     const installerProcess = spawn(resolvedPath, installerArgs, {
       detached: true,
@@ -265,7 +261,10 @@ export const launchWindowsInstaller = async (
         return
       }
 
-      if (isWindowsInstallFailed(output) || !isWindowsInstallSuccessful(output)) {
+      if (
+        isWindowsInstallFailed(output) ||
+        !isWindowsInstallSuccessful(output)
+      ) {
         settleFailure(getInstallErrorMessage(null, output))
         return
       }