Diagnostics

Hardware, software, system, and troubleshooting diagnostic tools.

Hardware Diagnostic Tools

Tool	Description	Supported platforms	Source
CPU-Z	System information software that gathers information about the processor, mainboard, memory, and other major system components.
CrystalDiskInfo	HDD/SSD utility software for monitoring drive health and supporting USB, Intel RAID, and NVMe devices.
HWMonitor	Hardware monitoring software that reads PC systems' main health sensors, including temperatures, voltages, fan speeds, and power consumption.
GPU-Z	Lightweight graphics card information utility designed to provide detailed information about a graphics card and GPU.
Open Hardware Monitor - Discontinued	Free and open-source hardware monitoring program that monitors temperature sensors, fan speeds, voltages, load and clock speeds of your computer.
LibreHardwareMonitor	Libre Hardware Monitor, a fork of Open Hardware Monitor, is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.
MSI Afterburner	Graphics card overclocking and monitoring software with real-time hardware monitoring, fan control, on-screen display, and overclocking tools.
MemTest86+	Free, open-source, standalone memory tester that performs detailed memory checks independently of the operating system.
MemTest86	Stand-alone memory testing software for x86 and ARM computers that boots from USB to test RAM for faults using comprehensive test algorithms and patterns.
AIDA64	System information, diagnostic, and benchmarking software providing detailed hardware and software information, monitoring, and reporting.
HWiNFO	Professional system information, monitoring, and diagnostics software providing detailed hardware information and real-time sensor monitoring.
Speccy	System information tool that provides detailed information about hardware and software installed on a Windows PC.
Prime95	Software for Mersenne-prime research that also provides CPU and memory torture testing for system stability testing.
Performance Monitor	Windows Performance Monitor (PerfMon) is a built-in tool for monitoring system usage and performance metrics using Windows performance counters, with real-time monitoring, data collection, and reporting capabilities.

Software Diagnostic Tools

Tool	Description	Supported platforms	Source
BlueScreenView	Utility that scans Windows minidump files from blue-screen crashes and displays crash details and drivers or modules that may have caused the crash.
Windows Event Viewer	Windows tool for viewing system and application event logs and investigating events recorded by the operating system and applications.
WhoCrashed	Utility that analyzes Windows crash dumps to identify drivers that may have caused system crashes.
Sysinternals Suite	Collection of Sysinternals troubleshooting utilities bundled into a single package.
Process Explorer	Advanced process viewer that shows processes, handles, DLLs, ownership information, and other process details.
Process Monitor	Real-time monitoring tool for file system, Registry, process, thread, and DLL activity.
Autoruns	Shows programs configured to start automatically when the system boots or a user logs in, including Registry and file locations used for auto-start configuration.
Handle	Command-line utility that shows what files are open by which processes and provides information about open handles.
ListDLLs	Command-line utility that lists the DLLs currently loaded by processes, including their locations and version information.
PortMon	Advanced monitoring tool for viewing serial and parallel port activity and associated I/O operations.
ProcDump	Command-line utility for capturing process dumps, including during CPU spikes, hung windows, and unhandled exceptions.
PsExec	Command-line utility for executing processes on remote systems.
PsGetSid	Command-line utility that displays the security identifier (SID) of a computer or user.
PsKill	Command-line utility for terminating local or remote processes.
PsList	Command-line utility that displays information about processes and threads.
PsService	Command-line utility for viewing and controlling Windows services.
PsSuspend	Command-line utility for suspending and resuming processes.
PsTools	Suite of command-line utilities for process management, remote administration, rebooting computers, dumping event logs, and other system tasks.
ShellRunas	Utility that lets you launch programs as a different user through a Windows shell context-menu entry.
VMMap	Process memory analysis utility for examining committed virtual memory types, working sets, and sources of process memory usage.
TCPView	Windows network monitoring utility that displays TCP and UDP endpoints and the processes that own them.
Wireshark	A network protocol analyzer for capturing, inspecting, and troubleshooting network traffic in real time.
Angry IP Scanner	A fast and lightweight network scanner for discovering devices, checking IP addresses, and scanning ports on local and remote networks.