WindowsForum Diagnostics v2.2.0

WindowsForum Diagnostics v2.2.0

Recommended Installation

Get from Microsoft Store - Signed by Microsoft, automatic updates

Alternative Downloads

• MSIX Bundle: Unsigned, for sideloading (requires developer mode or self-signed cert)
• Portable EXE: Standalone executables for x64 and ARM64, no installation required

Manual MSIX Installation

Add-AppxPackage -Path "WindowsForum_Diagnostics_2.2.0.msixbundle"

WindowsForum Diagnostics v2.1.9

WindowsForum Diagnostics v2.1.9

Recommended Installation

Get from Microsoft Store - Signed by Microsoft, automatic updates

Alternative Downloads

• MSIX Bundle: Unsigned, for sideloading (requires developer mode or self-signed cert)
• Portable EXE: Standalone executables for x64 and ARM64, no installation required

Manual MSIX Installation

Add-AppxPackage -Path "WindowsForum_Diagnostics_2.1.9.msixbundle"

WindowsForum Diagnostics v2.1.8

WindowsForum Diagnostics v2.1.8

Recommended Installation

Get from Microsoft Store - Signed by Microsoft, automatic updates

Alternative Downloads

• MSIX Bundle: Unsigned, for sideloading (requires developer mode or self-signed cert)
• Portable EXE: Standalone executables for x64 and ARM64, no installation required

Manual MSIX Installation

Add-AppxPackage -Path "WindowsForum_Diagnostics_2.1.8.msixbundle"

WindowsForum Diagnostics v2.1.7

WindowsForum Diagnostics v2.1.7

Recommended Installation

Get from Microsoft Store - Signed by Microsoft, automatic updates

Alternative Downloads

• MSIX Bundle: Unsigned, for sideloading (requires developer mode or self-signed cert)
• Portable EXE: Standalone executables for x64 and ARM64, no installation required

Manual MSIX Installation

Add-AppxPackage -Path "WindowsForum_Diagnostics_2.1.7.msixbundle"

WindowsForum Diagnostics v2.1.6

WindowsForum Diagnostics v2.1.6

Downloads

• MSIX Bundle (recommended for Windows 10/11): Install via Microsoft Store or download the .msixbundle file
• Portable EXE: Standalone executables for x64 and ARM64

What's New

See CHANGELOG.md for details.

Installation

Microsoft Store (recommended): Search for "WindowsForum Diagnostics" or use this link.

Manual Installation:

Add-AppxPackage -Path "WindowsForum_Diagnostics_2.1.6.msixbundle"

v2.1.5 - Phi Silica Tool Calling

What's New

Phi Silica (On-Device AI) Enhancements

• Smart Tool Calling: Phi Silica now intelligently selects which diagnostics to run based on your question
• Keyword-based suggestions: Questions about "make/model" automatically run system info, "security" runs firewall checks, etc.
• Clearer responses: Fixed issue where Phi Silica would change or rephrase your question
• Context optimization: Added limits to prevent "prompt too large" errors

OpenAI Integration

• Updated to GPT-5.2 model for improved analysis

Bug Fixes

• Fixed frontend showing hardcoded default diagnostics instead of actual diagnostics run
• Fixed Phi Silica returning structured response with correct diagnostics_run field

Requirements

• Windows 11 24H2 (build 26100+) for Phi Silica
• Copilot+ PC with NPU for local AI features
• OpenAI API key for cloud AI features

WFDiag v2.0.9

WindowsForum Diagnostic Tool v2.0.9

🔐 Digital Signatures

This release includes dual signing for maximum security and compatibility:

Generated from commit: 0f47d04

WF Diagnostics v2.0.8b - Security Hardened Release

WF Diagnostics v2.0.8 Release Notes

🔒 Major Security Enhancements

Comprehensive Security Hardening

• Filesystem Access Control: Restricted to only required directories (AppData, temp files, user folders)
• Command Execution Security: All system commands now go through validated secure execution
• Input Validation: Comprehensive argument validation and sanitization for all diagnostic tools
• PowerShell Security: Script content filtering prevents malicious operations

Security Architecture

• 12 System Commands properly whitelisted and validated
• 8 PowerShell Cmdlets allowed with content filtering
• Command Injection Prevention: Complete elimination through strict whitelisting
• Principle of Least Privilege: Filesystem access restricted to 6 specific directory patterns

🎯 User Experience Improvements

Enhanced Privilege Notifications

• Clear Status Display: Shows exactly what functionality is available without admin privileges
• Task Count Transparency: "22 of 27 diagnostic tasks available" when running as standard user
• Specific Feature List: Details which 5 tasks require administrator privileges
• Improved UI: Better visual hierarchy and informative messaging

Smart Privilege Model

• Most Features Work Without Admin: 22+ diagnostic tasks fully functional for standard users
• Optional Elevation: Easy "Restart as Administrator" for advanced features
• Graceful Degradation: Application works excellently without requiring UAC prompts

🛠️ Diagnostic Tools Secured

All Commands Now Use Secure Execution

• powershell - With script content validation for safe cmdlets only
• dxdiag - DirectX diagnostics with validated parameters
• ipconfig - Network configuration with argument restrictions
• chkdsk - Disk check (admin-only, read-only scan)
• dism - Windows image health (admin-only, health checking only)
• verifier - Driver verifier settings (admin-only, query only)
• powercfg - Battery reports with temp file validation
• wmic - WMI queries (whitelisted classes only)
• wevtutil - Event logs (System/Application only)
• netstat - Network connections (read-only)
• dsregcmd - Domain registration status

PowerShell Cmdlets Secured

• Get-AppxPackage - Store applications
• Get-ScheduledTask - Windows scheduled tasks
• Get-HotFix - Windows updates and hotfixes
• Get-Counter - Performance counters
• Select-Object, Where-Object, ConvertTo-Json - Data processing
• Repair-Volume - Read-only disk scanning (admin-only)

🔧 Technical Improvements

Build System

• Optimized Release Build: Link Time Optimization (LTO) enabled
• Size Optimization: Stripped symbols for smaller binaries
• Multiple Installers: Both MSI and NSIS packages available

Code Quality

• Comprehensive Testing: All security features tested and validated
• Error Handling: Robust fallback mechanisms for all diagnostic operations
• Memory Safety: All unsafe operations properly validated

📋 Administrator vs Standard User Features

✅ Available to Standard Users (22+ Tasks)

• System information and hardware analysis
• Network configuration and connectivity
• Installed programs and running processes
• Event logs and system monitoring
• Performance analysis and disk usage
• Store apps and scheduled tasks
• Windows update history

🔒 Administrator-Only Features (5 Tasks)

• Disk Check (chkdsk) - File system error checking
• DISM Health - Windows image health validation
• Battery Report - Hardware battery analysis
• Driver Verifier - Driver verification settings
• Minidump Analysis - BSOD crash dump access

🚀 Installation & Deployment

Package Options

• MSI Installer: WF Diagnostics_2.0.8_x64_en-US.msi (4.4 MB)
• NSIS Installer: WF Diagnostics_2.0.8_x64-setup.exe (3.2 MB)
• Portable: wfdiag-tauri.exe (7.9 MB)

System Requirements

• Operating System: Windows 10/11 (x64)
• Privileges: Most features work without administrator privileges
• Network: Optional (for AI analysis features)

🔄 Migration Notes

From v2.0.7

• Automatic: No configuration changes required
• Enhanced Security: All existing functionality preserved with added security
• UI Improvements: Better privilege status communication
• Performance: Same diagnostic capabilities with security hardening

🐛 Bug Fixes & Improvements

• Fixed command execution security vulnerabilities
• Improved error handling for privilege-restricted operations
• Enhanced user feedback for non-administrator scenarios
• Corrected version display consistency across UI components
• Resolved compilation warnings and code quality issues

⚠️ Important Security Notes

• Breaking Change: Direct command execution no longer possible (security improvement)
• Behavioral Change: Some diagnostic tasks now properly respect Windows security model
• Recommendation: Run as administrator only when advanced diagnostic features are needed
• Migration: Existing diagnostic workflows continue to work with enhanced security

🔍 Testing & Validation

• ✅ All 27 diagnostic tasks tested and functional
• ✅ Security restrictions validated and working
• ✅ Cross-privilege testing completed
• ✅ Installation packages verified
• ✅ Performance impact minimal

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For technical support or questions about this release, please refer to the documentation or create an issue in the project repository.