microsoft / microsoft/PowerToys
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- Dominant language
- C
- Stars
- 139k
- Forks
- 8.6k
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Description
### Microsoft PowerToys version
0.97.2.0
### Installation method
Microsoft Store
### Area(s) with issue?
General
### Steps to reproduce
Version: 0.97.2.0
OS Version: Microsoft Windows NT 10.0.19045.0
IntPtr Length: 8
x64: True
Date: 4/17/2026 1:40:31 PM
Exception:
System.InvalidCastException: Unable to cast object of type 'System.RuntimeType' to type 'System.Windows.Style'.
at System.Windows.FrameworkElement.OnStyleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
at System.Windows.ResourceReferenceExpression.InvalidateExpressionValue(Object sender, EventArgs e)
at System.Windows.TreeWalkHelper.InvalidateResourceReferences(DependencyObject d, ResourcesChangeInfo info)
at System.Windows.TreeWalkHelper.OnResourcesChanged(DependencyObject d, ResourcesChangeInfo info, Boolean raiseResourceChangedEvent)
at System.Windows.TreeWalkHelper.OnResourcesChangedCallback(DependencyObject d, ResourcesChangeInfo info, Boolean visitedViaVisualTree)
at System.Windows.DescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
at System.Windows.TreeWalkHelper.InvalidateOnResourcesChange(FrameworkElement fe, FrameworkContentElement fce, ResourcesChangeInfo info)
at System.Windows.SystemResources.InvalidateTreeResources(Object args)
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
_No response_
### Additional Information
_No response_
### Other Software
_No response_
Contributor guide
Research direction
Start by reproducing the failure on Microsoft Windows 10 with PowerToys 0.97.2.0 installed from the Microsoft Store, then trace the System.Windows.FrameworkElement.OnStyleChanged call shown in the exception. Identify which PowerToys UI action or resource change triggers the InvalidCastException; done means the trigger is confirmed and the crash no longer occurs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100