diff --git a/src/utils/vivadoConfig.ts b/src/utils/vivadoConfig.ts
index 9d7b44d..0c5d996 100644
--- a/src/utils/vivadoConfig.ts
+++ b/src/utils/vivadoConfig.ts
@@ -51,9 +51,11 @@ export function validateConfig(config: VivadoConfig): string | null {
   if (!config.enabled) {
     return 'Vivado 未启用';
   }
-  if (!fs.existsSync(config.executablePath)) {
+  // 如果是完整路径，检查文件是否存在
+  if (path.isAbsolute(config.executablePath) && !fs.existsSync(config.executablePath)) {
     return `Vivado 可执行文件不存在: ${config.executablePath}`;
   }
+  // 环境变量命令不检查，运行时会自动报错
   return null;
 }
 
@@ -72,34 +74,14 @@ export function resolveWorkingDir(workingDir: string): string {
  * 自动检测 Vivado
  */
 function autoDetectVivado(): VivadoConfig | null {
-  const drives = ['C', 'D', 'E', 'F', 'G'];
+  const workspaceFolder = vscode.workspace.workspaceFolders?.[0];
 
-  for (const drive of drives) {
-    const vivadoDir = `${drive}:\\Xilinx\\Vivado`;
-    if (!fs.existsSync(vivadoDir)) {
-      continue;
-    }
-
-    // 读取所有版本目录
-    const versions = fs.readdirSync(vivadoDir)
-      .filter(v => fs.statSync(path.join(vivadoDir, v)).isDirectory())
-      .sort()
-      .reverse(); // 最新版本在前
-
-    for (const version of versions) {
-      const p = path.join(vivadoDir, version, 'bin', 'vivado.bat');
-      if (fs.existsSync(p)) {
-        const workspaceFolder = vscode.workspace.workspaceFolders?.[0];
-        return {
-          enabled: true,
-          executablePath: p,
-          workingDir: workspaceFolder
-            ? path.join(workspaceFolder.uri.fsPath, 'vivado_projects')
-            : `${drive}:\\vivado_projects`
-        };
-      }
-    }
-  }
-
-  return null;
+  // 默认使用环境变量中的 vivado 命令
+  return {
+    enabled: true,
+    executablePath: 'vivado',
+    workingDir: workspaceFolder
+      ? path.join(workspaceFolder.uri.fsPath, 'vivado_projects')
+      : path.join(process.env.USERPROFILE || 'C:\\Users\\Default', 'vivado_projects')
+  };
 }