diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 32d8146..005ae12 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -153,6 +153,13 @@ jobs:
           ninja -j2
           cd ..
           ./script/deploy_windows64.sh
+      - name: Build Installer with NSIS
+        shell: cmd
+        if: matrix.platform == 'windows-latest'
+        run: |
+          cp .\script\windows_installer.nsi .
+          makensis windows_installer.nsi
+          cp NekoraySetup.exe deployment/
       - name: Linux - Generate MakeFile and Build
         shell: bash
         if: matrix.platform == 'ubuntu-22.04'
@@ -216,6 +223,7 @@ jobs:
           zip -9 -r $version_standalone-linux64.zip nekoray
           rm -rf nekoray
           ####
+          mv NekoraySetup.exe $version_standalone-windows64-installer.exe
           mv windows64 nekoray
           zip -9 -r $version_standalone-windows64.zip nekoray
           rm -rf nekoray
diff --git a/res/nekorayDel.ico b/res/nekorayDel.ico
new file mode 100644
index 0000000..b464925
Binary files /dev/null and b/res/nekorayDel.ico differ
diff --git a/script/windows_installer.nsi b/script/windows_installer.nsi
new file mode 100644
index 0000000..76834f9
--- /dev/null
+++ b/script/windows_installer.nsi
@@ -0,0 +1,61 @@
+Name "Nekoray"
+OutFile "NekoraySetup.exe"
+InstallDir "$PROGRAMFILES\Nekoray"
+RequestExecutionLevel admin
+
+!include MUI2.nsh
+!define MUI_ICON "res\nekoray.ico"
+!define MUI_ABORTWARNING
+!define MUI_WELCOMEPAGE_TITLE "Welcome to Nekoray Installer"
+!define MUI_WELCOMEPAGE_TEXT "This wizard will guide you through the installation of Nekoray."
+!define MUI_FINISHPAGE_RUN "$INSTDIR\nekoray.exe"
+!define MUI_FINISHPAGE_RUN_TEXT "Launch Nekoray"
+!define stopCommand 'powershell -ExecutionPolicy Bypass -WindowStyle Hidden -command "&{Stop-Process -Id (Get-CimInstance -ClassName Win32_Process -Filter $\'Name = $\'$\'nekoray.exe$\'$\'$\' | Where-Object { $$_.ExecutablePath -eq $\'$INSTDIR\nekoray.exe$\' }).ProcessId -Force}"'
+
+
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_INSTFILES
+!insertmacro MUI_PAGE_FINISH
+
+!insertmacro MUI_LANGUAGE "English"
+
+UninstallText "This will uninstall Nekoray. Do you wish to continue?"
+UninstallIcon "res\nekorayDel.ico"
+
+Section "Install"
+  SetOutPath "$INSTDIR"
+
+  ExecWait '${stopCommand}'
+
+  File /r ".\deployment\windows64\*"
+
+  CreateShortcut "$desktop\Nekoray.lnk" "$instdir\nekoray.exe"
+
+  CreateDirectory "$SMPROGRAMS\Nekoray"
+  CreateShortcut "$SMPROGRAMS\Nekoray\Nekoray.lnk" "$INSTDIR\nekoray.exe" "" "$INSTDIR\nekoray.exe" 0
+  CreateShortcut "$SMPROGRAMS\Nekoray\Uninstall Nekoray.lnk" "$INSTDIR\uninstall.exe"
+
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray" "DisplayName" "Nekoray"
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray" "UninstallString" "$INSTDIR\uninstall.exe"
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray" "InstallLocation" "$INSTDIR"
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray" "NoModify" 1
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray" "NoRepair" 1
+  WriteUninstaller "uninstall.exe"
+SectionEnd
+
+Section "Uninstall"
+
+  ExecWait '${stopCommand}'
+
+  Delete "$SMPROGRAMS\Nekoray\Nekoray.lnk"
+  Delete "$SMPROGRAMS\Nekoray\Uninstall Nekoray.lnk"
+  Delete "$desktop\Nekoray.lnk"
+  RMDir "$SMPROGRAMS\Nekoray"
+
+  RMDir /r "$INSTDIR"
+
+  Delete "$INSTDIR\uninstall.exe"
+
+  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Nekoray"
+SectionEnd
\ No newline at end of file