diff --git a/Bookworm-Setup.exe b/Bookworm-Setup.exe
index 0846c45..c8cf5cf 100644
Binary files a/Bookworm-Setup.exe and b/Bookworm-Setup.exe differ
diff --git a/auto-setup.ps1 b/auto-setup.ps1
index 105bf6d..19b30e9 100644
--- a/auto-setup.ps1
+++ b/auto-setup.ps1
@@ -2750,30 +2750,7 @@ if ($allOK -and $env:ANTHROPIC_API_KEY) {
     $splash.Close()
     $splash.Dispose()
 
-    # v3.0.1: Bun crash 预检 (Claude Code 2.1.x 内置 Bun, 部分 Win10/CPU 触发 Illegal instruction)
-    # 先静默跑 `claude --version` 测试 3 秒, 若 crash 自动降到 2.0.1 纯 Node 版
-    $claudeVerOK = $false
-    try {
-        # 加超时: Bun crash 可能导致 claude --version 挂起不退出, -Wait 会卡死
-        $proc = Start-Process -FilePath "claude" -ArgumentList "--version" -NoNewWindow -PassThru -RedirectStandardOutput "$env:TEMP\bw-claude-ver.txt" -RedirectStandardError "$env:TEMP\bw-claude-err.txt" -WindowStyle Hidden
-        $exited = $proc.WaitForExit(8000)  # 8 秒硬超时
-        if (-not $exited) {
-            try { $proc.Kill() } catch {}
-            Log-Warn "Claude Code --version 超过 8 秒无响应 (疑似 Bun 卡死)"
-        } elseif ($proc.ExitCode -eq 0) {
-            $out = Get-Content "$env:TEMP\bw-claude-ver.txt" -Raw -ErrorAction SilentlyContinue
-            if ($out -match "\d+\.\d+\.\d+") { $claudeVerOK = $true; Log-OK "Claude Code 自检: $($Matches[0])" }
-        } else {
-            Log-Warn "Claude Code 自检退出码非 0: $($proc.ExitCode) (可能 Bun Illegal instruction)"
-        }
-        Remove-Item "$env:TEMP\bw-claude-ver.txt","$env:TEMP\bw-claude-err.txt" -EA SilentlyContinue
-    } catch {}
-    if (-not $claudeVerOK) {
-        Log-Warn "Claude Code 2.1.x Bun 自检失败 (可能 Illegal instruction), 自动降级到 2.0.1 纯 Node 版..."
-        Run-CmdWithUI "npm" @("uninstall", "-g", "@anthropic-ai/claude-code") "卸载现版" 120000 | Out-Null
-        $r = Run-CmdWithUI "npm" @("install", "-g", "@anthropic-ai/claude-code@2.0.1") "安装 2.0.1 纯 Node 版" 180000
-        if ($r.OK) { Log-OK "Claude Code 降级到 2.0.1 (Bun crash 规避)" } else { Log-Warn "降级失败, 仍尝试原版启动" }
-    }
+    # v3.2.0: Bun crash 降级逻辑已移除 (Claude Code 2.1.x+ 不再使用 Bun, 无需降级到 2.0.1)
 
     # v3.0.1: 启动 Bookworm — 彻底绕开 .bat + claude.cmd shim
     # 直接调 claude.ps1 (npm 全局装时生成, PS 原生, 不会经 cmd.exe)