Lumen — PC Health & Debloat Toolkit

Lumen is a native Windows (.NET 8 WPF) optimization and debloating utility tailored for office workstations running Google Chrome, Microsoft Office, and SmarTerm terminal emulator.

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Key Features

• Diagnostics Scorecard: Read-only evaluation of boot performance (Event ID 100), storage media type (SSD vs HDD), RAM/CPU stats, drive free space, WinSxS size, antivirus status, and pending reboots.
• Safety-First Architecture: Every mutating operation automatically checks/creates a System Restore Point via PowerShell (Checkpoint-Computer) and logs before-states to SQLite (lumen.db).
• Reversible Startup Manager: Disables registry run entries into HKCU\Software\Lumen\DisabledStartup backups, renames .lnk shortcuts to .lumendisabled, and toggles Task Scheduler logon triggers without destructive deletion.
• Office Bloatware Removal: Office-safe uninstall checklist targeting ~25 pre-installed AppX packages (Xbox, 3D Viewer, Solitaire, News, Weather) with strict protection for core apps (Calculator, Notepad, Store, Photos, Security).
• Disk Cleanup: Size pre-calculations and cleanups for %TEMP%, C:\Windows\Temp, Chrome cache, Recycle Bin, WER queues, DISM component cleanup (/ResetBase), and Windows.old.
• Services Tuner: Office-only safe preset (Fax, RemoteRegistry, DiagTrack, XblAuthManager) alongside an immutable NEVER_TOUCH list protecting network stack (Dhcp, Dnscache, NlaSvc), RDP/SmarTerm dependencies (TermService), and security (WinDefend, wuauserv).
• Network & Logon Diagnostics: Measures DNS resolution time, server ICMP ping latency, and inspects mapped network drives (specifically monitoring Z:\) for reachability and reconnect-at-logon delays.
• Optimization Profiles: Includes built-in "Office Terminal Workstation" profile and JSON import/export for batch one-click fleet execution.
• Fleet Rollout & CLI Mode: Run interactively or silently in headless mode:

  .\Lumen.exe --profile "Office Terminal Workstation" --silent

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Prerequisites & Requirements

• Operating System: Windows 10 (1809+) or Windows 11 (x64)
• Privileges: Administrator Rights (requireAdministrator app manifest elevation required)
• Framework: .NET 8 Runtime (or publish as self-contained single-file executable)

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Build & Test Instructions

Build Solution

dotnet build Lumen.sln

Run Unit Tests

dotnet test Lumen.Tests/Lumen.Tests.csproj

Publish Single-File Executable

dotnet publish Lumen.App/Lumen.App.csproj -c Release -r win-x64 --self-contained

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Session Audit Logs & Safety Locations

• Database: %LocalAppData%\Lumen\lumen.db
• Crash Log: %LocalAppData%\Lumen\crash.log
• Silent Run Logs: %LocalAppData%\Lumen\Logs\<timestamp>-silent-run.log
• Settings: %LocalAppData%\Lumen\settings.json