diff --git a/scripts/installer.nsh b/scripts/installer.nsh
index c437afc..71dfed6 100644
--- a/scripts/installer.nsh
+++ b/scripts/installer.nsh
@@ -3,83 +3,65 @@
 ; Install: enables long paths, adds resources\cli to user PATH for openclaw CLI.
 ; Uninstall: removes the PATH entry and optionally deletes user data.
 
-; When customCheckAppRunning is defined, electron-builder skips its conditional
-; !include for getProcessInfo.nsh and the "Var pid" declaration. We must do
-; both ourselves so ${GetProcessInfo} and $pid are available.
-!ifndef getProcessInfo_included
-  !define getProcessInfo_included
-  !include "getProcessInfo.nsh"
-  Var pid
-!endif
 !ifndef nsProcess_included
   !define nsProcess_included
   !include "nsProcess.nsh"
 !endif
 
 !macro customCheckAppRunning
-  ${GetProcessInfo} 0 $pid $1 $2 $3 $4
-  ${if} $3 != "${APP_EXECUTABLE_FILENAME}"
+  ${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
+
+  ${if} $R0 == 0
     ${if} ${isUpdated}
       # allow app to exit without explicit kill
-      Sleep 300
+      Sleep 1000
+      Goto doStopProcess
     ${endIf}
+    MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "$(appRunning)" /SD IDOK IDOK doStopProcess
+    Quit
 
-    # Instead of launching cmd.exe /c tasklist, use the nsProcess plugin directly for all environments.
-    # This prevents the brief black cmd window from flashing.
-    ${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
+    doStopProcess:
+    DetailPrint `Closing running "${PRODUCT_NAME}"...`
 
-    ${if} $R0 == 0
-      ${if} ${isUpdated}
-        # allow app to exit without explicit kill
+    # Silently kill the process using nsProcess instead of taskkill / cmd.exe
+    ${nsProcess::KillProcess} "${APP_EXECUTABLE_FILENAME}" $R0
+    
+    # to ensure that files are not "in-use"
+    Sleep 300
+
+    # Retry counter
+    StrCpy $R1 0
+
+    loop:
+      IntOp $R1 $R1 + 1
+
+      ${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
+      ${if} $R0 == 0
+        # wait to give a chance to exit gracefully
         Sleep 1000
-        Goto doStopProcess
-      ${endIf}
-      MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "$(appRunning)" /SD IDOK IDOK doStopProcess
-      Quit
-
-      doStopProcess:
-      DetailPrint `Closing running "${PRODUCT_NAME}"...`
-
-      # Silently kill the process using nsProcess instead of taskkill / cmd.exe
-      ${nsProcess::KillProcess} "${APP_EXECUTABLE_FILENAME}" $R0
-      
-      # to ensure that files are not "in-use"
-      Sleep 300
-
-      # Retry counter
-      StrCpy $R1 0
-
-      loop:
-        IntOp $R1 $R1 + 1
-
+        ${nsProcess::KillProcess} "${APP_EXECUTABLE_FILENAME}" $R0
+        
         ${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
-        ${if} $R0 == 0
-          # wait to give a chance to exit gracefully
-          Sleep 1000
-          ${nsProcess::KillProcess} "${APP_EXECUTABLE_FILENAME}" $R0
-          
-          ${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
-          ${If} $R0 == 0
-            DetailPrint `Waiting for "${PRODUCT_NAME}" to close.`
-            Sleep 2000
-          ${else}
-            Goto not_running
-          ${endIf}
+        ${If} $R0 == 0
+          DetailPrint `Waiting for "${PRODUCT_NAME}" to close.`
+          Sleep 2000
         ${else}
           Goto not_running
         ${endIf}
+      ${else}
+        Goto not_running
+      ${endIf}
 
-        # App likely running with elevated permissions.
-        # Ask user to close it manually
-        ${if} $R1 > 1
-          MessageBox MB_RETRYCANCEL|MB_ICONEXCLAMATION "$(appCannotBeClosed)" /SD IDCANCEL IDRETRY loop
-          Quit
-        ${else}
-          Goto loop
-        ${endIf}
-      not_running:
-        nsProcess::Unload
-    ${endIf}
+      # App likely running with elevated permissions.
+      # Ask user to close it manually
+      ${if} $R1 > 1
+        MessageBox MB_RETRYCANCEL|MB_ICONEXCLAMATION "$(appCannotBeClosed)" /SD IDCANCEL IDRETRY loop
+        Quit
+      ${else}
+        Goto loop
+      ${endIf}
+    not_running:
+      nsProcess::Unload
   ${endIf}
 !macroend