diff --git a/shell/float-window.ps1 b/shell/float-window.ps1
index 69b2f0f..822cf55 100644
--- a/shell/float-window.ps1
+++ b/shell/float-window.ps1
@@ -213,9 +213,16 @@ if (Test-Path $stateFile) {
         $script:state.fullscreen = $false
     } catch { Write-Warning "state file ignored: $($_.Exception.Message)" }
 }
+# -NoExclude 只是本次运行的调试开关，不允许被写回状态文件（否则以后默认就不隐身了）
+$script:persistExclude = [bool]$script:state.exclude
 
 function Save-State {
-    try { ($script:state | ConvertTo-Json -Depth 3) | Set-Content -Path $stateFile -Encoding UTF8 } catch {}
+    try {
+        $out = [ordered]@{}
+        foreach ($k in $script:state.Keys) { $out[$k] = $script:state[$k] }
+        if ($NoExclude) { $out.exclude = $script:persistExclude }
+        ($out | ConvertTo-Json -Depth 3) | Set-Content -Path $stateFile -Encoding UTF8
+    } catch {}
 }
 
 # ---------------------------------------------------------------- 窗口