diff --git a/src-tauri/nsis/installer.nsi b/src-tauri/nsis/installer.nsi
deleted file mode 100644
index 2ff485f9..00000000
--- a/src-tauri/nsis/installer.nsi
+++ /dev/null
@@ -1,257 +0,0 @@
-!include MUI2.nsh
-!include nsDialogs.nsh
-!include LogicLib.nsh
-!include FileFunc.nsh
-
-!define MANUFACTURER "vrct"
-!define PRODUCTNAME "VRCT"
-!define VERSION "0.0.0"
-!define PRODUCT_VERSION "1.0.0.0"
-!define SHORTDESCRIPTION "Communication tool with translation & transcription for VRChat"
-!define UNINSTKEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCTNAME}"
-!define COPYRIGHT "Copyright m's software"
-!define MAINBINARYNAME "VRCT"
-!define ESTIMATEDSIZE "0x0b304b"
-
-VIProductVersion "${PRODUCT_VERSION}"
-VIFileVersion "${VERSION}"
-VIAddVersionKey "ProductName" "${PRODUCTNAME}"
-VIAddVersionKey "FileDescription" "${SHORTDESCRIPTION}"
-VIAddVersionKey "LegalCopyright" "${COPYRIGHT}"
-VIAddVersionKey "FileVersion" "${VERSION}"
-VIAddVersionKey "ProductVersion" "${PRODUCT_VERSION}"
-
-!define MUI_ICON "icons/icon.ico"
-!define MUI_UNICON "icons/icon.ico"
-
-Unicode true
-; アプリケーション名
-Name "VRCT"
-; 作成されるインストーラ
-OutFile "VRCT_Setup.exe"
-
-RequestExecutionLevel admin
-ShowInstDetails show
-
-; 圧縮メソッド
-SetCompressor lzma
-; インストールされるディレクトリ
-InstallDir "$LOCALAPPDATA\VRCT"
-; XPマニフェスト
-XPStyle on
-; ページ
-!insertmacro MUI_PAGE_WELCOME
-!insertmacro MUI_PAGE_LICENSE "..\LICENSE"
-Page custom OptionPage1 OptionPageLeave1
-Page custom OptionPage2 OptionPageLeave2
-!insertmacro MUI_PAGE_INSTFILES
-!insertmacro MUI_PAGE_FINISH
-; アンインストーラ ページ
-!insertmacro MUI_UNPAGE_WELCOME
-!insertmacro MUI_UNPAGE_CONFIRM
-!insertmacro MUI_UNPAGE_INSTFILES
-!insertmacro MUI_UNPAGE_FINISH
-; 日本語UI
-!insertmacro MUI_LANGUAGE "Japanese"
-; 引数取得マクロ
-!insertmacro GetParameters
-!insertmacro GetOptions
-; インターフェース 設定
-!define MUI_ABORTWARNING
-; 変数
-Var Checkbox_InstallShortcut
-Var Dialog_Options
-Var InstallShortcut
-Var DropList_Language
-Var Set_Langage
-Var DownloadWeight
-Var RadioButton_Download
-Var RadioButton_NotDownload
-Var Label_Translation_subtitle_1
-Var Label_Translation_subtitle_2
-Var subFont
-
-; 初期化時コールバック
-Function .onInit
-  ; オプション値を初期化します。
-  StrCpy $InstallShortcut ${BST_CHECKED}
-  StrCpy $DropList_Language "English"
-  StrCpy $DownloadWeight ${BST_CHECKED}
-FunctionEnd
-
-; オプション ページ 1
-Function OptionPage1
-  !insertmacro MUI_HEADER_TEXT "オプション (Options)" "オプションを設定してください。 (Please set the options.)"
-  ; nsDialogsを作成します。
-  nsDialogs::Create 1018
-  ; 作成されたnsDialogsを変数に代入します。
-  Pop $Dialog_Options
-
-  ${If} $Dialog_Options == error
-    ; ダイアログの作成に失敗した場合には終了します。
-    Abort
-  ${EndIf}
-
-  ${NSD_CreateCheckbox} 0 0u 100% 12u "デスクトップにショートカットを作成 (Install shortcut on desktop)"
-  Pop $Checkbox_InstallShortcut
-
-  ${If} $InstallShortcut == ${BST_CHECKED}
-    ; チェックが入力済の場合、チェックボックスにチェックを入れます。
-    ${NSD_Check} $Checkbox_InstallShortcut
-  ${EndIf}
-  nsDialogs::Show
-FunctionEnd
-
-; オプション ページ 1 退出コールバック
-Function OptionPageLeave1
-  ${NSD_GetState} $Checkbox_InstallShortcut $InstallShortcut
-FunctionEnd
-
-; オプション ページ 2
-Function OptionPage2
-  CreateFont $subFont "MS UI Gothic" "8" "400"
-
-  !insertmacro MUI_HEADER_TEXT "初期設定 (Initial Settings)" "後から変更可能です。 (Changeable later.)"
-  ; nsDialogsを作成します。
-  nsDialogs::Create 1018
-  ; 作成されたnsDialogsを変数に代入します。
-  Pop $Dialog_Options
-
-  ${If} $Dialog_Options == error
-    ; ダイアログの作成に失敗した場合には終了します。
-    Abort
-  ${EndIf}
-
-  ; ComboBoxを作成します。
-  ${NSD_CreateLabel} 0 20u 30% 12u "UIの言語 (Language)"
-
-  ${NSD_CreateDropList} 33% 20u 33% 12u ""
-  Pop $DropList_Language
-
-  # ラジオボタンを追加しWEIGHTをDownloadするか選択する
-  ${NSD_CreateLabel} 0 70u 30% 12u "翻訳機能 (Translation)"
-  ${NSD_CreateLabel} 0 83u 30% 8u "言語モデルをダウンロード"
-  Pop $Label_Translation_subtitle_1
-  SendMessage $Label_Translation_subtitle_1 ${WM_SETFONT} $subFont 0
-  SetCtlColors $Label_Translation_subtitle_1 0x696969 0xF0F0F0
-  ${NSD_CreateLabel} 0 92u 30% 8u "(Download language model)"
-  Pop $Label_Translation_subtitle_2
-  SendMessage $Label_Translation_subtitle_2 ${WM_SETFONT} $subFont 0
-  SetCtlColors $Label_Translation_subtitle_2 0x696969 0xF0F0F0
-
-  ${NSD_CreateRadioButton} 33% 70u 33% 12u "使用する (Use)"
-  Pop $RadioButton_Download
-  ${NSD_CreateRadioButton} 66% 70u 33% 12u "使用しない (Don't use)"
-  Pop $RadioButton_NotDownload
-
-  ${NSD_CB_AddString} $DropList_Language "English"
-  ${NSD_CB_AddString} $DropList_Language "日本語"
-  ${NSD_CB_AddString} $DropList_Language "한국어"
-
-  ${NSD_CB_SelectString} $DropList_Language "English"
-
-  ${If} $DownloadWeight == ${BST_CHECKED}
-    ; チェックが入力済の場合、チェックボックスにチェックを入れます。
-    ${NSD_Check} $RadioButton_Download
-  ${EndIf}
-  nsDialogs::Show
-FunctionEnd
-
-; オプション ページ 2 退出コールバック
-Function OptionPageLeave2
-  ${NSD_GetText} $DropList_Language $DropList_Language
-  ${NSD_GetState} $RadioButton_Download $DownloadWeight
-FunctionEnd
-
-; デフォルト セクション
-Section
-  ; If VRCT is already running, display a warning message and exit
-  StrCpy $1 "VRCT.exe"
-  nsProcess::_FindProcess "$1"
-  Pop $R1
-  ${If} $R1 = 0
-    nsExec::ExecToStack "taskkill /IM VRCT.exe"
-  ${EndIf}
-
-  ; ; ディレクトリを削除
-  ; RMDir /r "$INSTDIR"
-  ; ; スタート メニューから削除
-  ; Delete "$SMPROGRAMS\VRCT\VRCT.lnk"
-  ; RMDir "$SMPROGRAMS\VRCT"
-  ; ; デスクトップ ショートカットを削除
-  ; Delete "$DESKTOP\VRCT.lnk"
-  ; ; レジストリ キーを削除
-  ; DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\VRCT"
-
-  ; 出力先を指定します。
-  SetOutPath "$INSTDIR"
-  ; インストールされるファイル
-  File /a "target\release\VRCT.exe"
-  File /a "target\release\backend.exe"
-  File /r "target\release\_internal\"
-
-  ; アンインストーラを出力
-  WriteUninstaller "$INSTDIR\Uninstall.exe"
-
-  ${If} $InstallShortcut == ${BST_CHECKED}
-    ; デスクトップにショートカットを作成
-    CreateShortCut "$DESKTOP\VRCT.lnk" "$INSTDIR\VRCT.exe"
-  ${EndIf}
-
-  ; ComboBoxの選択値から言語を判定しconfig.jsonを$INSTDIRに作成
-  ${If} $DropList_Language == "English"
-      StrCpy $Set_Langage "en"
-  ${ElseIf} $DropList_Language == "日本語"
-      StrCpy $Set_Langage "ja"
-  ${ElseIf} $DropList_Language == "한국어"
-      StrCpy $Set_Langage "ko"
-  ${EndIf}
-
-  ${If} $DownloadWeight == 1
-      StrCpy $DownloadWeight "true"
-  ${Else}
-      StrCpy $DownloadWeight "false"
-  ${EndIf}
-
-  StrCpy $1 '{"UI_LANGUAGE": "$Set_Langage", "USE_TRANSLATION_FEATURE": $DownloadWeight}'
-  FileOpen $0 "$INSTDIR\config.json" w
-  FileWrite $0 $1
-  FileClose $0
-
-  ; スタート メニューにショートカットを登録
-  CreateDirectory "$SMPROGRAMS\VRCT"
-  SetOutPath "$INSTDIR"
-  CreateShortcut "$SMPROGRAMS\VRCT\VRCT.lnk" "$INSTDIR\VRCT.exe" ""
-  ; レジストリに登録
-  WriteRegStr SHCTX "${UNINSTKEY}" "DisplayName" "${PRODUCTNAME}"
-  WriteRegStr SHCTX "${UNINSTKEY}" "DisplayIcon" "$\"$INSTDIR\${MAINBINARYNAME}.exe$\""
-  WriteRegStr SHCTX "${UNINSTKEY}" "DisplayVersion" "${VERSION}"
-  WriteRegStr SHCTX "${UNINSTKEY}" "Publisher" "${MANUFACTURER}"
-  WriteRegStr SHCTX "${UNINSTKEY}" "InstallLocation" "$\"$INSTDIR$\""
-  WriteRegStr SHCTX "${UNINSTKEY}" "UninstallString" "$\"$INSTDIR\Uninstall.exe$\""
-  WriteRegDWORD SHCTX "${UNINSTKEY}" "NoModify" "1"
-  WriteRegDWORD SHCTX "${UNINSTKEY}" "NoRepair" "1"
-  WriteRegDWORD SHCTX "${UNINSTKEY}" "EstimatedSize" "${ESTIMATEDSIZE}"
-SectionEnd
-
-; アンインストーラ
-Section Uninstall
-  ; If VRCT is already running, display a warning message and exit
-  StrCpy $1 "VRCT.exe"
-  nsProcess::_FindProcess "$1"
-  Pop $R1
-  ${If} $R1 = 0
-      MessageBox MB_OK|MB_ICONEXCLAMATION "VRCT is still running. Cannot uninstall this software.$\nPlease close VRCT and try again." /SD IDOK
-      Abort
-  ${EndIf}
-  ; ディレクトリを削除
-  RMDir /r "$INSTDIR"
-  RMDir /r "$LOCALAPPDATA\VRCT"
-  ; スタート メニューから削除
-  Delete "$SMPROGRAMS\VRCT\VRCT.lnk"
-  RMDir "$SMPROGRAMS\VRCT"
-  ; デスクトップ ショートカットを削除
-  Delete "$DESKTOP\VRCT.lnk"
-  ; レジストリ キーを削除
-  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\VRCT"
-SectionEnd
\ No newline at end of file
diff --git a/src-tauri/nsis/template.nsi b/src-tauri/nsis/template.nsi
index 783f23d1..72b27b8f 100644
--- a/src-tauri/nsis/template.nsi
+++ b/src-tauri/nsis/template.nsi
@@ -128,8 +128,178 @@ VIAddVersionKey "ProductVersion" "${VERSION}"
   !insertmacro MULTIUSER_PAGE_INSTALLMODE
 !endif
 
+; 4-1. Choose language page
+Var DropListLanguages
+Var SelectedLangage
+Var DialogChooseLanguage
+Page custom PageChooseLanguage PageLeaveChooseLanguage
+Function PageChooseLanguage
+    !insertmacro MUI_HEADER_TEXT "Initial Settings" "Set the language of the VRCT UI (can be changed later)."
+    nsDialogs::Create 1018
+    Pop $DialogChooseLanguage
 
-; 4. Custom page to ask user if he wants to reinstall/uninstall
+    ${If} $DialogChooseLanguage == error
+        Abort
+    ${EndIf}
+
+    ${NSD_CreateLabel} 0 21u 30% 12u "UI Language"
+    ${NSD_CreateDropList} 33% 20u 33% 12u ""
+    Pop $DropListLanguages
+    ${NSD_CB_AddString} $DropListLanguages "English"
+    ${NSD_CB_AddString} $DropListLanguages "日本語"
+    ${NSD_CB_AddString} $DropListLanguages "한국어"
+    ${NSD_CB_AddString} $DropListLanguages "繁體中文"
+    ${NSD_CB_SelectString} $DropListLanguages "English"
+    StrCpy $SelectedLangage "en"
+    nsDialogs::Show
+FunctionEnd
+
+Function PageLeaveChooseLanguage
+    ${NSD_GetText} $DropListLanguages $0
+    ${If} "English" == $0
+        StrCpy $SelectedLangage "en"
+    ${ElseIf} "日本語" == $0
+        StrCpy $SelectedLangage "ja"
+    ${ElseIf} "한국어" == $0
+        StrCpy $SelectedLangage "ko"
+    ${ElseIf} "繁體中文" == $0
+        StrCpy $SelectedLangage "zh-Hant"
+    ${EndIf}
+FunctionEnd
+
+; 4-2. Page Download Translate Model Weight
+Var CheckboxUseTranslate
+Var DropListCTranslate2DownloadWeightType
+Var SelectedCTranslate2DownloadWeightType
+Var DialogTranslate
+Page custom PageTranslate PageLeaveTranslate
+Function PageTranslate
+    !insertmacro MUI_HEADER_TEXT "Initial Settings" "Set to use the translation function (can be changed later)."
+    nsDialogs::Create 1018
+    Pop $DialogTranslate
+
+    ${If} $DialogTranslate == error
+        Abort
+    ${EndIf}
+
+    ${NSD_CreateLabel} 0 21u 33% 12u "Enable Translation"
+    ${NSD_CreateCheckBox} 33% 20u 33% 12u ""
+    Pop $CheckboxUseTranslate
+    ${NSD_CreateLabel} 0 52u 33% 12u "Select AI Model Size"
+    ${NSD_CreateDropList} 33% 50u 40% 12u ""
+    Pop $DropListCTranslate2DownloadWeightType
+    ${NSD_CB_AddString} $DropListCTranslate2DownloadWeightType "Basic model(418MB)"
+    ${NSD_CB_AddString} $DropListCTranslate2DownloadWeightType "High accuracy model(1.3GB)"
+    ${NSD_CB_SelectString} $DropListCTranslate2DownloadWeightType "Basic model(418MB)"
+    StrCpy $SelectedCTranslate2DownloadWeightType "Small"
+    EnableWindow $DropListCTranslate2DownloadWeightType 0
+    ${NSD_OnClick} $CheckboxUseTranslate OnCheckboxCTranslate2DownloadWeightClick
+    nsDialogs::Show
+FunctionEnd
+
+Function PageLeaveTranslate
+    ${NSD_GetState} $CheckboxUseTranslate $0
+    ${If} $0 == 1
+        StrCpy $CheckboxUseTranslate "true"
+    ${Else}
+        StrCpy $CheckboxUseTranslate "false"
+    ${EndIf}
+
+    ${NSD_GetText} $CheckboxCTranslate2DownloadWeight $0
+    ${If} "Basic model(418MB)" == $0
+        StrCpy $SelectedCTranslate2DownloadWeightType "Small"
+    ${ElseIf} "High accuracy model(1.3GB)" == $0
+        StrCpy $SelectedCTranslate2DownloadWeightType "Large"
+    ${EndIf}
+FunctionEnd
+
+Function OnCheckboxCTranslate2DownloadWeightClick
+    Pop $CheckboxUseTranslate
+    ${NSD_GetState} $CheckboxUseTranslate $0
+    ${If} $0 == 1
+        EnableWindow $DropListCTranslate2DownloadWeightType 1
+    ${Else}
+        EnableWindow $DropListCTranslate2DownloadWeightType 0
+    ${EndIf}
+FunctionEnd
+
+; 4-3. Page Download Transcript Model Weight
+Var DropLListTranscriptEngines
+Var SelectedTranscriptEngine
+Var DropListWhisperDownloadWeightType
+Var SelectedWhisperDownloadWeightType
+Var DialogTranscript
+Page custom PageTranscript PageLeaveTranscript
+Function PageTranscript
+    !insertmacro MUI_HEADER_TEXT "Initial Settings" "Set to use the transcript engine (can be changed later)."
+    nsDialogs::Create 1018
+    Pop $DialogTranscript
+
+    ${If} $DialogTranscript == error
+        Abort
+    ${EndIf}
+
+    ${NSD_CreateLabel} 0 21u 33% 12u "Select Transcript Engine"
+    ${NSD_CreateDropList} 33% 20u 33% 12u ""
+    Pop $DropLListTranscriptEngines
+    ${NSD_CB_AddString} $DropLListTranscriptEngines "Google"
+    ${NSD_CB_AddString} $DropLListTranscriptEngines "Wishper(USE CPU)"
+    ${NSD_CB_SelectString} $DropLListTranscriptEngines "Google"
+    ${NSD_CreateLabel} 0 52u 33% 12u "Select AI Model Size"
+    ${NSD_CreateDropList} 33% 50u 40% 12u ""
+    Pop $DropListWhisperDownloadWeightType
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "tiny model(74.5MB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "base model(141MB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "small model(463MB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "medium model(1.42GB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "large-v1 model(2.87GB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "large-v2 model(2.87GB)"
+    ${NSD_CB_AddString} $DropListWhisperDownloadWeightType "large-v3 model(2.87GB)"
+    ${NSD_CB_SelectString} $DropListWhisperDownloadWeightType "base model(141MB)"
+
+    StrCpy $SelectedWhisperDownloadWeightType "base"
+    EnableWindow $DropListWhisperDownloadWeightType 0
+    ${NSD_OnChange} $DropLListTranscriptEngines OnDropListWishperDownloadWeightClick
+    nsDialogs::Show
+FunctionEnd
+
+Function PageLeaveTranscript
+    ${NSD_GetText} $DropLListTranscriptEngines $0
+    ${If} $0 == "Google"
+        StrCpy $SelectedTranscriptEngine "google"
+    ${Else}
+        StrCpy $SelectedTranscriptEngine "wishper"
+    ${EndIf}
+    ${NSD_GetText} $DropListWhisperDownloadWeightType $0
+    ${If} "tiny model(74.5MB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "tiny"
+    ${ElseIf} "base model(141MB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "base"
+    ${ElseIf} "small model(463MB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "small"
+    ${ElseIf} "medium model(1.42GB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "medium"
+    ${ElseIf} "large-v1 model(2.87GB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "large-v1"
+    ${ElseIf} "large-v2 model(2.87GB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "large-v2"
+    ${ElseIf} "large-v3 model(2.87GB)" == $0
+        StrCpy $SelectedWhisperDownloadWeightType "large-v3"
+    ${EndIf}
+FunctionEnd
+
+Function OnDropListWishperDownloadWeightClick
+    ${NSD_GetText} $DropLListTranscriptEngines $0
+    ${If} $0 == "Wishper(USE CPU)"
+        EnableWindow $DropListWhisperDownloadWeightType 1
+    ${Else}
+        EnableWindow $DropListWhisperDownloadWeightType 0
+    ${EndIf}
+FunctionEnd
+
+!insertmacro MUI_PAGE_COMPONENTS
+
+; 4-4. Custom page to ask user if he wants to reinstall/uninstall
 ;    only if a previous installtion was detected
 Var ReinstallPageCheck
 Page custom PageReinstall PageLeaveReinstall
@@ -309,6 +479,8 @@ Var AppStartMenuFolder
 ; 7. Installation page
 !insertmacro MUI_PAGE_INSTFILES
 
+
+
 ; 8. Finish page
 ;
 ; Don't auto jump to finish page after installation page,
@@ -619,6 +791,11 @@ Function .onInstSuccess
       ${GetOptions} $CMDLINE "/ARGS" $R0
       nsis_tauri_utils::RunAsUser "$INSTDIR\${MAINBINARYNAME}.exe" "$R0"
   run_done:
+
+  StrCpy $1 '{"UI_LANGUAGE": "$SelectedLangage", "USE_TRANSLATION_FEATURE": $CheckboxUseTranslate, "SELECTED_TRANSCRIPTION_ENGINE": "$SelectedTranscriptEngine", "CTRANSLATE2_WEIGHT_TYPE": "$SelectedCTranslate2DownloadWeightType", "WHISPER_WEIGHT_TYPE": "$SelectedWhisperDownloadWeightType"}'
+  FileOpen $0 "$INSTDIR\config.json" w
+  FileWrite $0 $1
+  FileClose $0
 FunctionEnd
 
 Function un.onInit
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index e8eaff54..4710e958 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -72,8 +72,8 @@
         "nsis": {
           "template": "nsis/template.nsi",
           "license": "../LICENSE",
-          "displayLanguageSelector": true,
-          "compression": "lzma"
+          "installMode": "both",
+          "displayLanguageSelector": true
         }
       }
     }