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Microsoft Sysinternals Tools

Official Microsoft utilities for investigating processes, startup, networking, disks, memory and security on Windows.

Sysinternals is a collection of advanced troubleshooting utilities published by Microsoft. They're free, and most run without installation. Download them from Microsoft's official Sysinternals pages, the Microsoft Store (Sysinternals Suite) or Winget where a verified package exists.

Part of the IT Engineer / IT Support and System Administrator toolkits, which explain when you would use each tool.

Processes

Inspect processes, the files and registry keys they use, and their activity.

  • Process Explorer

    A detailed replacement for Task Manager.

    FreeWin

  • Process Monitor

    Real-time file, registry and process activity monitoring.

    FreeWin

  • Handle

    Shows which process has a file or folder open.

    FreeWin

Startup

List programs, services and drivers that run at startup or sign-in.

  • Autoruns

    Shows everything that starts automatically on Windows.

    FreeWin

Networking

See network connections and measure latency.

  • TCPView

    Shows active network connections and the programs using them.

    FreeWin

  • PsPing

    Measures latency and bandwidth with ICMP, TCP and more.

    FreeWin

Disk

Convert physical disks to virtual hard disks.

  • Disk2vhd

    Converts physical disks to virtual hard disks.

    FreeWin

Memory

Analyse how physical memory is being used.

  • RAMMap

    Analyses how physical memory is used.

    FreeWin

Security

Verify signatures, review permissions and log system activity.

  • Sysmon

    Logs detailed system activity to the Windows event log.

    FreeWin / Linux

  • Sigcheck

    Checks file versions and digital signatures.

    FreeWin

  • AccessChk

    Reviews permissions on files, registry keys and services.

    FreeWin

Diagnostics

Collect crash dumps and inspect files.

  • ProcDump

    Creates crash dumps when a program misbehaves.

    FreeWin / Linux

  • Strings

    Finds readable text inside files.

    FreeWin

Administration

Run administration tasks locally or remotely.

  • PsTools

    Command-line tools for local and remote administration.

    FreeWin

  • BGInfo

    Displays system information on the desktop background.

    FreeWin

  • ZoomIt

    Screen zoom and annotation for presentations.

    FreeWin

Everything at once

The complete set of Sysinternals utilities.

More Windows tools