bugs

### Microsoft PowerToys version

0.88.0.0

### Installation method

Microsoft Store

### Area(s) with issue?

General

### Steps to reproduce

Version: 0.88.0.0
OS Version: Microsoft Windows NT 10.0.26200.0
IntPtr Length: 8
x64: True
Date: 2026-05-28 오후 12:58:09
Exception:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
---> System.Runtime.InteropServices.COMException (0x80263001): {바탕 화면 구성을 사용할 수 없도록 설정했습니다.} 바탕 화면을 구성할 수 없도록 설정했으므로 작업을 완료할 수 없습니다. (0x80263001)
at Standard.NativeMethods.DwmExtendFrameIntoClientArea(IntPtr hwnd, MARGINS& pMarInset)
at System.Windows.Appearance.WindowBackdropManager.UpdateGlassFrame(IntPtr hwnd, WindowBackdropType backdropType)
at System.Windows.Appearance.WindowBackdropManager.ApplyBackdrop(IntPtr hwnd, WindowBackdropType backdropType)
at System.Windows.Appearance.WindowBackdropManager.SetBackdrop(Window window, WindowBackdropType backdropType)
at System.Windows.ThemeManager.ApplyStyleOnWindow(Window window, Boolean useLightColors)
at System.Windows.ThemeManager.OnApplicationThemeChanged(ThemeMode oldThemeMode, ThemeMode newThemeMode)
at PowerLauncher.Helper.ThemeManager.SetSystemTheme(Theme theme)
at PowerLauncher.Helper.ThemeManager.<>c__DisplayClass12_0.b__0()
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback)
at PowerLauncher.Helper.ThemeManager.UpdateTheme()
at PowerLauncher.Helper.ThemeManager.OnUserPreferenceChanged(Object sender, UserPreferenceChangedEventArgs e)
at InvokeStub_UserPreferenceChangedEventHandler.Invoke(Object, Span`1)
at System.Reflection.MethodBaseInvoker.InvokeWithFewArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
--- End of inner exception stack trace ---
at System.Reflection.MethodBaseInvoker.InvokeWithFewArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at Microsoft.Win32.SystemEvents.SystemEventInvokeInfo.InvokeCallback(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

### ✔️ Expected Behavior

_No response_

### ❌ Actual Behavior

_No response_

### Upload Bug Report ZIP-file

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### Additional Information

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### Other Software

_No response_

Start with the reported stack trace around System.Windows.Appearance.WindowBackdropManager.UpdateGlassFrame and Standard.NativeMethods.DwmExtendFrameIntoClientArea. Reproduce the failure on Windows with desktop composition disabled, then trace how PowerLauncher.Helper.ThemeManager.UpdateTheme handles the exception. Done means theme changes no longer produce this unhandled COMException.

Written by the indexing model from the issue text.