diff --git a/electron/main/install-deps.ts b/electron/main/install-deps.ts
index cb10b8c9f..7156b1c1f 100644
--- a/electron/main/install-deps.ts
+++ b/electron/main/install-deps.ts
@@ -677,116 +677,4 @@ export async function installDependencies(version: string): Promise<PromiseRetur
         resolve({ message: "Both default and mirror install failed", success: false })
     }
   })
-}
-
-let dependencyInstallationDetected = false;
-let installationNotificationSent = false;
-
-/**
- * @deprecated This function is no longer called and should not be used.
- *
- * REASON FOR DEPRECATION:
- * - Keyword-based detection causes false positives when backend logs contain
- *   words like "Installing", "Updating", "Syncing" during normal operation
- * - Checking file system on every backend log line is inefficient
- * - Installation is now only handled through explicit installation flow in createWindow
- *
- * This function is kept for backwards compatibility but is not invoked anywhere.
- */
-export function detectInstallationLogs(msg:string) {
-  // CRITICAL FIX: Use file system to check if installation is complete
-  // Don't rely on module variables as they can be reset during hot reload
-
-  // Check if dependencies are already installed
-  const isAlreadyInstalled = fs.existsSync(installedLockPath);
-
-  // If installed lock file exists, dependencies are already installed
-  // Skip all detection to avoid false positives
-  if (isAlreadyInstalled) {
-    // Dependencies are already installed, skip detection entirely
-    return;
-  }
-
-  // Also skip if notification was already sent (in current session)
-  if (installationNotificationSent) {
-    return;
-  }
-
-  // Check for UV dependency installation patterns
-  const installPatterns = [
-      "Resolved", // UV resolving dependencies
-      "Downloaded", // UV downloading packages
-      "Installing", // UV installing packages
-      "Built", // UV building packages
-      "Prepared", // UV preparing virtual environment
-      "Syncing", // UV sync process
-      "Creating virtualenv", // Virtual environment creation
-      "Updating", // UV updating packages
-      "× No solution found when resolving dependencies", // Dependency resolution issues
-      "Audited" // UV auditing dependencies
-  ];
-
-  // Detect if UV is installing dependencies
-  if (!dependencyInstallationDetected && installPatterns.some(pattern =>
-      msg.includes(pattern) && !msg.includes("Uvicorn running on")
-  )) {
-      dependencyInstallationDetected = true;
-      log.info('[BACKEND STARTUP] UV dependency installation detected during uvicorn startup');
-
-      // Create installing lock file to maintain consistency with install-deps.ts
-      InstallLogs.setLockPath();
-      log.info('[BACKEND STARTUP] Created uv_installing.lock file');
-
-      // Notify frontend that installation has started (only once)
-      if (!installationNotificationSent) {
-          installationNotificationSent = true;
-          const notificationSent = safeMainWindowSend('install-dependencies-start');
-          if (notificationSent) {
-              log.info('[BACKEND STARTUP] Notified frontend of dependency installation start');
-          } else {
-              log.warn('[BACKEND STARTUP] Failed to notify frontend of dependency installation start');
-          }
-      }
-  }
-  
-  // Send installation logs to frontend if installation was detected
-  if (dependencyInstallationDetected && !msg.includes("Uvicorn running on")) {
-      safeMainWindowSend('install-dependencies-log', {
-          type: msg.toLowerCase().includes("error") || msg.toLowerCase().includes("traceback") ? 'stderr' : 'stdout',
-          data: msg
-      });
-  }
-  
-  // Check if installation is complete (uvicorn starts successfully)
-  if (dependencyInstallationDetected && msg.includes("Uvicorn running on")) {
-      log.info('[BACKEND STARTUP] UV dependency installation completed, uvicorn started successfully');
-      
-      // Clean up installing lock and create installed lock
-      InstallLogs.cleanLockPath();
-      fs.writeFileSync(installedLockPath, '');
-      log.info('[BACKEND STARTUP] Created uv_installed.lock file');
-      
-      safeMainWindowSend('install-dependencies-complete', {
-          success: true,
-          message: 'Dependencies installed successfully during backend startup'
-      });
-  }
-  
-  // Handle installation failures
-  if (dependencyInstallationDetected && (
-      msg.toLowerCase().includes("failed to resolve dependencies") ||
-      msg.toLowerCase().includes("installation failed") ||
-      msg.includes("× No solution found when resolving dependencies")
-  )) {
-      log.error('[BACKEND STARTUP] UV dependency installation failed');
-      
-      // Clean up installing lock file
-      InstallLogs.cleanLockPath();
-      log.info('[BACKEND STARTUP] Cleaned up uv_installing.lock file after failure');
-      
-      safeMainWindowSend('install-dependencies-complete', {
-          success: false,
-          error: 'Dependency installation failed during backend startup'
-      });
-  }
 }
\ No newline at end of file