diff --git a/config/build/win/nsis/installer.nsh b/config/build/win/nsis/installer.nsh
index 7197c5f9..678fd61a 100644
--- a/config/build/win/nsis/installer.nsh
+++ b/config/build/win/nsis/installer.nsh
@@ -1,8 +1,13 @@
 !macro customInit
-
+  # guid=7e51495b-3f4d-5235-aadd-5636863064f0
+  ReadRegStr $0 HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\DS Talk_is1" "UninstallString"
+  ${If} $0 != ""
+    MessageBox MB_ICONINFORMATION|MB_TOPMOST  "이전 버전의 DS Talk을 제거 하시겠습니까?" IDOK
+    ExecWait $0 $1
+  ${EndIf}
 !macroend
 
 !macro customInstall
-  File "${BUILD_RESOURCES_DIR}\win\bin\npcap-0.99-r7.exe"
-  ExecWait '"$INSTDIR\npcap-0.99-r7.exe" /npf_startup=yes /loopback_support=yes /admin_only=no /dot11_support=yes /vlan_support=yes /winpcap_mode=yes'
+  # File "${BUILD_RESOURCES_DIR}\win\bin\npcap-0.99-r7.exe"
+  # ExecWait '"$INSTDIR\npcap-0.99-r7.exe" /npf_startup=yes /loopback_support=yes /admin_only=no /dot11_support=yes /vlan_support=yes /winpcap_mode=yes'
 !macroend
diff --git a/electron-builder.json b/electron-builder.json
index 32630d45..68a19987 100644
--- a/electron-builder.json
+++ b/electron-builder.json
@@ -64,6 +64,7 @@
     "oneClick": true,
     "allowToChangeInstallationDirectory": false,
     "perMachine": false,
-    "differentialPackage": true
+    "differentialPackage": true,
+    "include": "./config/build/win/nsis/installer.nsh"
   }
 }