diff --git a/lib/platform/process.dart b/lib/platform/process.dart
index 1199f16..a11a4e1 100644
--- a/lib/platform/process.dart
+++ b/lib/platform/process.dart
@@ -127,12 +127,20 @@ class ProcessData {
 }
 
 class ProcessExecutor {
-  static bool _powershellGranted = false;
-  static Future getPowershellGrant() async {
-    if (!_powershellGranted) {
-      _powershellGranted = true;
-      var result = await Process.run(
-        'powershell.exe',
+  static String _powershellPath = '';
+  static Future<String> getPowershell() async {
+    if (_powershellPath.isEmpty) {
+      var result = await Process.run('cmd', ['/c', 'where powershell']);
+      if (result.exitCode == 0) {
+        var path = result.stdout.toString().split('\n')[0];
+        _powershellPath = File(path).absolute.path;
+      }
+      if (_powershellPath.isEmpty) {
+        throw UnsupportedError('Not found powershell');
+      }
+
+      result = await Process.run(
+        _powershellPath,
         [
           '-Command',
           'Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned'
@@ -144,7 +152,7 @@ class ProcessExecutor {
         print('[Powershell Grant] Error: ${result.stderr}');
       }
     }
-    return simpleFuture;
+    return dataFutrue(_powershellPath);
   }
 
   static Future<ProcessData> startExe(String exe, List<String> args,
@@ -226,11 +234,9 @@ class ProcessExecutor {
         file.createSync();
         file.writeAsStringSync(shell.toString(), flush: true);
 
-        await getPowershellGrant();
-
         try {
-          processData.process = await Process.start(
-              'powershell.exe', ['-NoProfile', '-File', file.absolute.path]);
+          processData.process = await Process.start(await getPowershell(),
+              ['-NoProfile', '-File', file.absolute.path]);
         } on Exception catch (e) {
           logHandler ?? (e, LogType.error);
         }
@@ -288,10 +294,10 @@ class ProcessExecutor {
 
       print(file.absolute.path);
 
-      await getPowershellGrant();
+      await getPowershell();
 
       processResult = await Process.run(
-          'powershell.exe', // PowerShell 실행
+          await getPowershell(), // PowerShell 실행
           ['-NoProfile', '-File', file.absolute.path],
           runInShell: true);
 
diff --git a/lib/utils/os_startup.dart b/lib/utils/os_startup.dart
index 65281a2..4ae3ece 100644
--- a/lib/utils/os_startup.dart
+++ b/lib/utils/os_startup.dart
@@ -324,7 +324,8 @@ Exit
   @override
   Future<bool> isRegistedStartup(String label) async {
     var shell = 'Get-ScheduledTask | Where-Object {\$_.TaskName -eq "$label"}';
-    var process = await Process.run('powershell.exe', [shell]);
+    var process =
+        await Process.run(await ProcessExecutor.getPowershell(), [shell]);
     var exist = false;
     if (process.exitCode == 0) {
       var existLine = <String>[];
@@ -387,8 +388,8 @@ Exit
     var powershellCommand =
         'Start-Process powershell.exe -ArgumentList "-NoProfile -ExecutionPolicy Bypass -Command `& \'${tempFile.path}\'; exit" -Verb RunAs -WindowStyle Hidden';
 
-    var process = await Process.run(
-        'powershell', ['-Command', powershellCommand, '-Wait']);
+    var process = await Process.run(await ProcessExecutor.getPowershell(),
+        ['-Command', powershellCommand, '-Wait']);
 
     print(process.stdout.toString());
     print(process.stderr.toString());
@@ -403,7 +404,7 @@ Exit
   Future<bool> unregistStartup(String label) async {
     var shell = 'Unregister-ScheduledTask -TaskName "$label" -Confirm:\$false';
     var process = await Process.run(
-      'powershell.exe',
+      await ProcessExecutor.getPowershell(),
       [
         '-Command',
         'Start-Process powershell -ArgumentList \'-NoProfile -ExecutionPolicy Bypass -Command "$shell"\' -Verb RunAs -WindowStyle Hidden'