I downloaded the Arduino IDE version 2.3.6 on my new computer, but it got stuck at the startup screen after running.
I have already tried the method of uninstalling and reinstalling, and I have also browsed the relevant topics on the forum, but none of them could solve my problem.
The operating system I am using is Windows 10.
Here is the running log that I have extracted:
2025-07-14 16:49:37 Arduino IDE 2.3.6
2025-07-14 16:49:37 Checking for frontend application configuration customizations. Module path: C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\electron-main.js, destination 'package.json': C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\package.json
2025-07-14 16:49:37 Setting 'theia.frontend.config.appVersion' application configuration value to: "2.3.6" (type of string)
2025-07-14 16:49:37 Setting 'theia.frontend.config.cliVersion' application configuration value to: "1.2.0" (type of string)
2025-07-14 16:49:37 Setting 'theia.frontend.config.buildDate' application configuration value to: "2025-04-09T11:26:55.498Z" (type of string)
2025-07-14 16:49:37 Frontend application configuration after modifications: {"applicationName":"Arduino IDE","defaultTheme":{"light":"arduino-theme","dark":"arduino-theme-dark"},"defaultIconTheme":"none","electron":{"windowOptions":{},"showWindowEarly":true,"splashScreenOptions":{},"uriScheme":"arduino-ide"},"defaultLocale":"","validatePreferencesSchema":false,"reloadOnReconnect":true,"uriScheme":"theia","preferences":{"window.title":"${rootName}${activeEditorShort}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.6","cliVersion":"1.2.0","buildDate":"2025-04-09T11:26:55.498Z"}
2025-07-14 16:49:37 Starting backend process. PID: 12032
2025-07-14 16:49:37 Showing main window early
2025-07-14 16:49:37 Using browser-only version of superagent in non-browser environment
2025-07-14 16:49:37 Configuration directory URI: 'file:///c%3A/Users/qian_work/.arduinoIDE'
2025-07-14 16:49:37 Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2025-07-14 16:49:37 2025-07-14T08:49:37.693Z root INFO Backend u.initialize: 25.7 ms [Finished 0.553 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.697Z root INFO Backend Object.initialize: 23.3 ms [Finished 0.553 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.697Z root INFO Backend a.initialize: 1.3 ms [Finished 0.553 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.697Z root INFO Backend a.initialize: 1.1 ms [Finished 0.553 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.697Z root INFO Backend u.initialize: 1.4 ms [Finished 0.553 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.699Z root INFO Backend l.initialize: 24.5 ms [Finished 0.554 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.705Z root INFO configured all backend app contributions
2025-07-14 16:49:37 2025-07-14T08:49:37.706Z root INFO Backend l.onStart: 1.1 ms [Finished 0.566 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.706Z root INFO Backend d.onStart: 0.1 ms [Finished 0.567 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z root INFO Backend a.onStart: 0.3 ms [Finished 0.567 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z config INFO >>> Initializing CLI configuration...
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z root INFO Backend x.onStart: 0.3 ms [Finished 0.567 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z config INFO Loading CLI configuration from c:\Users\qian_work\.arduinoIDE\arduino-cli.yaml...
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z daemon INFO Starting daemon from C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\resources\arduino-cli.exe...
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z root INFO Backend w.onStart: 0.3 ms [Finished 0.568 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z discovery-log INFO start
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z discovery-log INFO start new deferred
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z root INFO Backend v.onStart: 0.2 ms [Finished 0.568 s after backend start]
2025-07-14 16:49:37 2025-07-14T08:49:37.707Z root INFO Backend a.onStart: 0.1 ms [Finished 0.568 s after backend start]
2025-07-14 16:49:38 2025-07-14T08:49:38.274Z root INFO Theia app listening on http://127.0.0.1:49476.
2025-07-14 16:49:38 2025-07-14T08:49:38.274Z root INFO Finished starting backend application: 566.5 ms [Finished 1.135 s after backend start]
2025-07-14 16:49:38 2025-07-14T08:49:38.275Z root WARN The local plugin referenced by local-dir:/c%3A/Users/qian_work/.arduinoIDE/plugins does not exist.
2025-07-14 16:49:38 2025-07-14T08:49:38.275Z root WARN The local plugin referenced by local-dir:/c%3A/Users/qian_work/.arduinoIDE/deployedPlugins does not exist.
2025-07-14 16:49:38 2025-07-14T08:49:38.275Z root WARN The local plugin referenced by local-dir:C:\Users\qian_work\.arduinoIDE\plugins does not exist.
2025-07-14 16:49:38 2025-07-14T08:49:38.304Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]}}
2025-07-14 16:49:38 2025-07-14T08:49:38.304Z config INFO Loading fallback CLI configuration to get 'directories.data' and 'directories.user'
2025-07-14 16:49:38 2025-07-14T08:49:38.338Z root INFO Resolve plugins list: 629.5 ms [Finished 1.199 s after backend start]
2025-07-14 16:49:38 2025-07-14T08:49:38.385Z daemon INFO time="2025-07-14T16:49:38+08:00" level=info msg="arduino-cli version 1.2.0"
2025-07-14 16:49:38 2025-07-14T08:49:38.388Z daemon INFO time="2025-07-14T16:49:38+08:00" level=info msg="Using config file: c:\\Users\\qian_work\\.arduinoIDE\\arduino-cli.yaml"
2025-07-14 16:49:38 2025-07-14T08:49:38.388Z daemon INFO time="2025-07-14T16:49:38+08:00" level=info msg="Executing `arduino-cli daemon`"
2025-07-14 16:49:38 2025-07-14T08:49:38.401Z daemon INFO Daemon is now listening on 127.0.0.1:49478
{"IP":"127.0.0.1","Port":"49478"}
2025-07-14 16:49:38 2025-07-14T08:49:38.401Z daemon INFO Daemon is running.
2025-07-14 16:49:38 2025-07-14T08:49:38.410Z config INFO Loaded fallback CLI configuration: {"directories":{"user":"C:\\Users\\qian_work\\Documents\\Arduino","data":"C:\\Users\\qian_work\\AppData\\Local\\Arduino15"}}
2025-07-14 16:49:38 2025-07-14T08:49:38.410Z config INFO Merged CLI configuration with the fallback: {"directories":{"user":"C:\\Users\\qian_work\\Documents\\Arduino","data":"C:\\Users\\qian_work\\AppData\\Local\\Arduino15"},"board_manager":{"additional_urls":[]}}
2025-07-14 16:49:38 2025-07-14T08:49:38.410Z config INFO Loaded the CLI configuration.
2025-07-14 16:49:38 2025-07-14T08:49:38.420Z config INFO Mapped the CLI configuration: {"dataDirUri":"file:///c%3A/Users/qian_work/AppData/Local/Arduino15","sketchDirUri":"file:///c%3A/Users/qian_work/Documents/Arduino","additionalUrls":[],"network":"none","locale":"en"}
2025-07-14 16:49:38 2025-07-14T08:49:38.420Z config INFO Validating the CLI configuration...
2025-07-14 16:49:38 2025-07-14T08:49:38.420Z config INFO The CLI config is valid.
2025-07-14 16:49:38 2025-07-14T08:49:38.420Z config INFO <<< Initialized the CLI configuration.
2025-07-14 16:49:38 2025-07-14T08:49:38.727Z root ERROR Uncaught Exception: Error: 14 UNAVAILABLE: No connection established. Last error: Error: connect ETIMEDOUT 127.0.0.1:49478
2025-07-14 16:49:38 2025-07-14T08:49:38.727Z root ERROR Error: 14 UNAVAILABLE: No connection established. Last error: Error: connect ETIMEDOUT 127.0.0.1:49478
at t.callErrorFromStatus (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:3089094)
at Object.onReceiveStatus (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6679669)
at Object.onReceiveStatus (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:2572294)
at Object.onReceiveStatus (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:2571739)
at C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:4307911
at process.processTicksAndRejections (node:internal/process/task_queues:77:11)
for call at
at s.makeUnaryRequest (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6679200)
at s.create (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:3088187)
at instance (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6283083)
at new Promise (<anonymous>)
at y.createClient (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6283060)
at y.create (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6281968)
at C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:6280864
at C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:1018551
at s.invoke (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:1018641)
at a.fire (C:\Users\qian_work\AppData\Local\Programs\arduino-ide\resources\app\lib\backend\main.js:2:1020444)
2025-07-14 16:49:38 2025-07-14T08:49:38.860Z root INFO Deploy plugins list: 1151.9 ms [Finished 1.721 s after backend start]
2025-07-14 16:51:00 Stored workspaces roots:
2025-07-14 16:51:00 No sketches were scheduled for deletion.