5c351aee5f
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? --> ## Summary of the Pull Request <!-- Please review the items on the PR checklist before submitting--> ## PR Checklist - [x] Closes: #50174 <!-- - [ ] Closes: #yyy (add separate lines for additional resolved issues) --> - [ ] **Communication:** I've discussed this with core contributors already. If the work hasn't been agreed, this work might be rejected - [ ] **Tests:** Added/updated and all pass - [ ] **Localization:** All end-user-facing strings can be localized - [ ] **Dev docs:** Added/updated - [ ] **New binaries:** Added on the required places - [ ] [JSON for signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json) for new binaries - [ ] [WXS for installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs) for new binaries and localization folder - [ ] [YML for CI pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml) for new test projects - [ ] [YML for signed pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml) - [ ] **Documentation updated:** If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys) and link it here: #xxx <!-- Provide a more detailed description of the PR, other things fixed, or any additional comments/features here --> ## Detailed Description of the Pull Request / Additional comments This updates the folder preview in Peek to: 1. Show the file and sub-folder count, like Explorer's property page 2. Show a spinner while the enumeration is in progress 3. Replace the spinner with a warning icon when there was an error and add "incomplete" to the counts instead of navigating to the default Peek error display 4. Add `IgnoreInaccessible = true` to the `FolderEnumerationOptions`, which automatically skips inaccessible folders instead of raising an error 5. Fix an issue with comparing UTC and non-UTC `DateTime`s which could freeze the updating counts or update them too often 6. Reduce the scan's allocations by more than 60% by using `FileSystemEnumerable` instead of `DirectoryInfo.EnumerateFiles()`. This is because `FileInfo`/`DirectoryInfo` objects are no longer created for each iteration 7. Use `Typography.NumeralAlignment="Tabular"` to present numeric counts, significantly improving the readability of the fields during iteration and removing the alignment jitter 8. Remove LINQ-based chunking. This was not actually required because the file enumeration itself was lazy 9. Check the cancellation token every iteration instead of once per 100-file chunk ### Screenshots and video #### Scan in progress <img width="833" height="677" alt="Screenshot 2026-08-27 230826" src="https://github.com/user-attachments/assets/e6f0ad16-3815-4e0e-b7b2-a7d89b9e43f2" /> #### Incomplete scan display <img width="833" height="677" alt="Screenshot 2026-08-28 024556" src="https://github.com/user-attachments/assets/2787ddc4-7e2e-455b-aa70-bb6b2bf0cfaf" /> #### Screen recording https://github.com/user-attachments/assets/4bbe677a-c5dd-4f01-98f3-b8f74a15fb22 ## Validation Steps Performed - All Peek unit tests pass: <img width="308" height="47" alt="image" src="https://github.com/user-attachments/assets/76c33d98-3028-466a-a0f1-068d50de5872" /> - Tested a variety of small and large folders with differing contents and access - Benchmarked the new approach against the existing enumeration method to confirm memory and timing did not regress ``` // * Summary * BenchmarkDotNet v0.14.0, Windows 11 (10.0.26200.9168) 11th Gen Intel Core i5-1135G7 2.40GHz, 1 CPU, 8 logical and 4 physical cores .NET SDK 10.0.400 [Host] : .NET 9.0.19 (9.0.1926.36724), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI Job-ARTJAD : .NET 9.0.19 (9.0.1926.36724), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI IterationCount=5 WarmupCount=3 | Method | Mean | Error | StdDev | Ratio | Gen0 | Gen1 | Gen2 | Allocated | Alloc Ratio | |------------------------------------------- |--------:|--------:|--------:|------:|-----------:|----------:|----------:|----------:|------------:| | 'Old: DirectoryInfo + Chunk' | 11.13 s | 0.297 s | 0.046 s | 1.00 | 26000.0000 | 9000.0000 | 5000.0000 | 128.23 MB | 1.00 | | 'New: FileSystemEnumerable' | 10.97 s | 0.394 s | 0.102 s | 0.99 | 10000.0000 | 6000.0000 | 3000.0000 | 47.51 MB | 0.37 | | 'P/Invoke: FindFirstFileExW + LARGE_FETCH' | 12.25 s | 0.106 s | 0.016 s | 1.10 | 10000.0000 | 1000.0000 | - | 44.99 MB | 0.35 | ```
Microsoft PowerToys
Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks.
Installation · Documentation · Blog · Release notes
🔨 Utilities
PowerToys includes over 30 utilities to help you customize and optimize your Windows experience:
Advanced Paste
Always on Top
Awake
Color Picker
Command Not Found
Command Palette
Crop And Lock
Environment Variables
FancyZones
File Explorer Add-ons
File Locksmith
Grab And Move
Hosts File Editor
Image Resizer
Keyboard Manager
Light Switch
Mouse Utilities
Mouse Without Borders
New+
Peek
PowerDisplay
PowerRename
PowerToys Run
Quick Accent
Registry Preview
Screen Ruler
Shortcut Guide
Text Extractor
Window Hopper
Workspaces
ZoomIt📦 Installation
For detailed installation instructions and system requirements, visit the installation docs.
But to get started quickly, choose one of the installation methods below:
Download the .exe file from GitHub
Go to the PowerToys GitHub releases, scroll down and select Assets to reveal the installation files, and choose the one that matches your architecture and install scope. For most devices, that would be x64 per-user.
Microsoft Store
You can easily install PowerToys from the Microsoft Store:
WinGet
Download PowerToys from [WinGet](https://github.com/microsoft/winget-cli#installing-the-client). Updating PowerToys via winget will respect the current PowerToys installation scope. To install PowerToys, run the following command from the command line / PowerShell:
- User scope installer (default)
winget install Microsoft.PowerToys -s winget
- Machine-wide scope installer
winget install --scope machine Microsoft.PowerToys -s winget
Other methods
There are [community driven install methods](https://learn.microsoft.com/windows/powertoys/install#community-driven-install-tools) such as Chocolatey and Scoop. If these are your preferred install solutions, you can find the install instructions there.
✨ What's new?
To see what's new, check out the release notes.
🛣️ Roadmap
For v0.102, we're working on modernizing several utilities with WinUI 3, expanding Command Palette with tabs and JavaScript/TypeScript extensions, and adding new productivity improvements across PowerToys.
❤️ PowerToys Community
The PowerToys team is extremely grateful to have the support of an amazing active community. The work you do is incredibly important. PowerToys wouldn't be nearly what it is today without your help filing bugs, updating documentation, guiding the design, or writing features. We want to say thank you and take time to recognize your work. Your contributions and feedback improve PowerToys month after month!
Contributing
This project welcomes contributions of all types. Besides coding features / bug fixes, other ways to assist include spec writing, design, documentation, and finding bugs. We are excited to work with the power user community to build a set of tools for helping you get the most out of Windows. We ask that before you start work on a feature that you would like to contribute, please read our Contributor's Guide. We would be happy to work with you to figure out the best approach, provide guidance and mentorship throughout feature development, and help avoid any wasted or duplicate effort. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you grant us the rights to use your contribution and that you have permission to do so. For guidance on developing for PowerToys, please read the developer docs for a detailed breakdown. This includes how to setup your computer to compile.
Code of conduct
This project has adopted the Microsoft Open Source Code of Conduct.
Privacy statement
The application logs basic diagnostic data (telemetry). For more privacy information and what we collect, see our PowerToys Data and Privacy documentation.