WinMonitor

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WinMonitor is a lightweight Windows hardware monitor built with .NET 10 WinForms. It combines live sensor readings, configurable system-tray icons, independent-scale charts, alerts, and CSV history in a compact desktop application.

Highlights

• Monitors supported CPU, GPU, storage, memory, battery, motherboard, and fan sensors through LibreHardwareMonitor.
• Shows temperature, power, clock, load, voltage, data, PWM, and RPM values with session minimum, maximum, and average statistics.
• Displays configurable tray icons with units, threshold colors, multi-sensor rotation, and compact-mode access.
• Charts selected sensors over 1, 3, 5, 10, 20, 30, or 60 minutes. Quantity groups use independent Y axes, distinct markers, and hover labels.
• Provides threshold alerts, profiles, automatic startup, adaptive polling, daily peak reset, and English/Traditional Chinese UI.
• Exports every recorded sample from the current application session as a time-series CSV. Optional background logging writes daily CSV files.
• Reports CPU thermal-throttling state when supported, with a temperature-based fallback when direct MSR status is unavailable.
• Includes read-only ACPI EC support for known LG gram fan-speed registers. WinMonitor never writes EC registers.

Requirements

• Windows 10 or Windows 11, x64
• .NET 10 Desktop Runtime to run a framework-dependent build
• .NET 10 SDK to build from source
• Administrator privileges for the widest CPU, NVMe SMART, and EC sensor access
• PawnIO 2.2.0 or later for supported privileged and EC telemetry

Run from Source

dotnet run --project .\src\WinMonitor\WinMonitor.csproj

For hardware diagnostics, run the sensor inventory tool from an elevated terminal:

dotnet run --project .\tools\SensorDump\SensorDump.csproj

Build, Test, and Publish

dotnet build .\src\WinMonitor\WinMonitor.csproj -c Release
dotnet run --project .\tests\WinMonitor.Tests\WinMonitor.Tests.csproj -c Release
powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\publish.ps1

publish.ps1 creates installed and portable builds under dist\. The portable build stores configuration beside the executable; the installed build uses %AppData%\WinMonitor.

Project Layout

Path	Purpose
src/WinMonitor	WinForms application, sensor services, UI, tray integration, and configuration
tests/WinMonitor.Tests	Package-free regression harness
tools/SensorDump	Elevated sensor and EC diagnostic utility
docs	Hardware-specific notes and fan telemetry guidance
ARCHITECTURE.md	Module contracts, threading rules, and data flow

Hardware Notes

Sensor availability depends on the hardware, firmware, privileges, and driver version. The bundled LG fan mapping currently targets known 16T90R/gram 360 firmware fields; other systems may require a new read-only profile. Use SensorDump before reporting missing telemetry.

Licensing

WinMonitor's original source code is Copyright (c) 2026 Michael Lin and is available under the MIT License. Third-party components retain their own licenses; exact versions, source locations, and redistributed license texts are documented in THIRD_PARTY_NOTICES.md and licenses/. Release archives include these files and they must be preserved when redistributing WinMonitor.