v1.5.1

ValleySoft Disk Analyzer v1.5.1

TreeSize-like disk usage analyzer for PowerToys Run, Windows Command Palette, and Standalone WinUI 3 App.

v1.5.1 Hotfix Release: This update resolves an immediate startup crash (0xc000027b) on clean Windows installations by packaging the Windows App SDK runtime directly with the application (100% self-contained), hardening system backdrop initialization with fallback for Windows 10, and stabilizing layout rendering for unmeasured tabs.

Components

This release includes three tools, bundled into two easy installations:

• Standalone App (WinUI 3) and Command Palette Extension — both bundled together in the native .msix package!
• PowerToys Run Plugin (ds keyword in Alt+Space) — installed via the standalone .exe installer.

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Screenshots

1. Standalone App (WinUI 3)

2. PowerToys Run Plugin & GUI

3. Command Palette Extension

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Installation — Standalone App & Command Palette Extension (Unified MSIX)

1. Download ValleySoft.DiskAnalyzer.App_1.5.1_x64.msix (or arm64) from the assets below.
2. Double-click the .msix file and click Install.
3. You're done! The Standalone App will be in your Start Menu, and the Command Palette Extension will automatically be registered in the Windows Command Palette.

💡 Troubleshooting Certificate Verification (Error 0x800B010A):
Because this MSIX is a sideloading release signed with a self-signed certificate, Windows requires you to install the certificate once before installing the app:

1. Download ValleySoft.cer from the release assets below.
2. Right-click the .cer file and select Install Certificate.
3. Select Local Machine, click Next.
4. Choose Place all certificates in the following store, click Browse, select Trusted People, click OK.
5. Click Next, then Finish. Now double-click the .msix file to install the app cleanly!

Recommended: The Microsoft Store is the easiest way to install and keep the app automatically updated!

Alternatively, you can install it instantly via the command line using winget:

winget install --id 9NF073KLTVWN --source msstore

Installation — PowerToys Run Plugin

1. Download ValleySoft.DiskAnalyzerInstaller-v1.5.1-x64.exe (or arm64) from the assets below.
2. Exit PowerToys (right-click tray icon → Exit).
3. Run the installer — it will clean install to %LOCALAPPDATA%\Microsoft\PowerToys\PowerToys Run\Plugins\DiskAnalyzer.
4. Restart PowerToys and enable the plugin in Settings → PowerToys Run → Plugins.

Usage

Command	Description
ds	Show help and all available commands
ds drives	List all drives with used / free / total space
ds recent	Show last 5 scanned paths for instant re-scan
ds top C:\	Top folders ranked by size
ds largest C:\	Find largest files recursively
ds ext C:\ .mp4	Find files by extension
ds empty C:\	Find empty folders
ds gui	Open the standalone GUI window

🚀 What's New in Version 1.5.1 (Hotfix)

🛠️ What Got Fixed & Improved:

• 🛡️ Self-Contained Windows App SDK Runtime: Embedded the entire Windows App SDK runtime directly into the application package (WindowsAppSDKSelfContained=true), eliminating startup crashes (0xc000027b) on clean Windows installations without requiring external Store framework provisioning.
• 🎨 Hardened Backdrop Initialization: Removed declarative MicaBackdrop from XAML markup in favor of dynamic runtime initialization with graceful fallback for Windows 10, battery saver, and environments lacking hardware composition.
• 📊 Top Files DataGrid Stability: Fixed division-by-zero layout cycles on unmeasured inactive tabs by giving the Name column fixed sizing and lazily binding the items collection on tab activation.
• 🔄 Synchronized App Metadata: Updated internal version indicators, Help page "What's New (v1.5.1)" highlights, and fallback version strings across the suite.

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🚀 What's New in Version 1.5.0

🟢 What Got Added:

• 🍩 Interactive Donut Chart: Added a dedicated Donut Chart tab in the Standalone App to visualize folder space distribution with responsive scaling, Fluent accent colors, center total size display, and tap-to-drill-down navigation.
• 📁 Top 100 Largest Files Tab: Added a dedicated Top Files tab that multithreadedly scans the entire drive/root to surface the 100 largest files with early size pruning and root-level system files (pagefile.sys, hiberfil.sys, swapfile.sys) support.
• 🕐 Large & Old Files Quick Filter: Added a one-click toolbar toggle filter button to instantly isolate files larger than 100 MB not modified in the last 12 months with a live match count badge.
• 🗑️ Send to Recycle Bin: Added a right-click context menu option in the results grid to safely move files or folders to the Windows Recycle Bin with a confirmation dialog and dynamic list updates.
• 🕒 PowerToys Run Recent Scans (ds recent): Added a history mechanism to PowerToys Run storing the last 5 scanned paths for instant 1-click re-scanning.
• 📊 Richer Result Subtitles: PowerToys Run query results now show both total size and formatted item counts (e.g. 42.3 GB · 15,823 items).
• ⌨️ PowerToys Run Full Keyboard Navigation: Added complete keyboard accessibility to the floating GUI (Enter to drill down, Backspace to navigate up one level, and F5 to refresh/rescan).
• 📊 PowerToys Run Collapsible Donut Panel: Added a toggleable side chart panel in the PowerToys Run GUI window featuring a high-contrast visual donut chart.
• 🎨 Live Theme Synchronization: Added dynamic system theme tracking (UserPreferenceChanged) to the PowerToys Run GUI, instantly switching between dark and light themes without requiring an app restart.
• ▓ High-Contrast Shaded Usage Bars: Redesigned PowerToys Run mini usage progress bars (DiskAnalyzerHelper.CreateMiniBar) using unicode contrast blocks (█ / ░) ensuring clear visibility across dark and light modes.
• ⚙️ Native Command Palette Settings: Replaced placeholder settings with native CommandProvider.Settings integration, introducing persistent "Show Hidden Files" and "Max Scan Depth" controls.
• ⚡ Command Palette Asynchronous Loading: Command Palette extension now streams and queries results asynchronously in the background, eliminating UI freezes and maintaining launcher responsiveness.
• 💾 Enhanced Excel-Sortable CSV Export: Export formatted .csv files including unquoted numeric Size (Bytes) and Allocated Size (Bytes) columns with UTF-8 BOM encoding for direct numeric sorting and formula calculations in Microsoft Excel.

🛠️ What Got Fixed & Improved:

• 📊 Bar Chart Dynamic Scaling & Horizontal Scrolling: Fixed bar chart item clipping on smaller displays by adding horizontal scrolling and dynamic bar height scaling.
• 🛡️ Drill-Down Tap Safety: Prevented aggregate "Other (N items)" summary bars from triggering invalid navigation while maintaining tap-to-drill-down on all named item slices and bars.
• 🧹 Clean Command Palette Provider Registration: Purged stale ghost provider cache entries for a clean single-entry settings experience.
• 📖 Modernized Standalone Help Page: Fully refreshed Help and Features documentation detailing Donut Charts, Top Files, Old & Large filtering, Recycle Bin integration, and launcher commands.