Windows Sysinternals

The Sysinternals web site was created in 1996 by Mark Russinovich to host his advanced system utilities and technical information. Whether you’re an IT Pro or a developer, you’ll find Sysinternals utilities to help you manage, troubleshoot and diagnose your Windows systems and applications.

• Read the official guide to the Sysinternals tools, Troubleshooting with the Windows Sysinternals Tools
• Read the Sysinternals Blog for a detailed change feed of tool updates
• Watch Mark’s Sysinternals Update videos on YouTube
• Watch Mark’s top-rated Case-of-the-Unexplained troubleshooting presentations and other webcasts
• Read Mark’s Blog which highlight use of the tools to solve real problems
• Check out the Sysinternals Learning Resources page
• Post your questions in the Sysinternals Forum

Sysinternals Live

Sysinternals Live is a service that enables you to execute Sysinternals tools directly from the Web without hunting for and manually downloading them. Simply enter a tool’s Sysinternals Live path into Windows Explorer or a command prompt as live.sysinternals.com/ or В \\live.sysinternals.com\tools\ .

You can view the entire Sysinternals Live tools directory in a browser at https://live.sysinternals.com/.

What’s New

What’s New (March 23, 2021)

• TCPView v4.0 This major update to TCPView adds flexible filtering, support for searching, and now shows the Windows service that owns an endpoint. It is also the second Sysinternals tool to feature the new theme engine with dark mode.

What’s New (February 22, 2021)

WinObj v3.0 This major update to WinObj adds dynamic updates, quick search, full search, properties for more object types, as well as performance improvements. It’s also the first Sysinternals tool to feature a dark theme.

Coreinfo v3.52 This update to CoreInfo adds reporting for CET (shadow stack) support.

What’s New (January 11, 2021)

Sysmon v13.00 This update to Sysmon adds a process image tampering event that reports when the mapped image of a process doesn’t match the on-disk image file, or the image file is locked for exclusive access. These indicators are triggered by process hollowing and process herpaderping. This release also includes several bug fixes, including fixes for minor memory leaks.

Process Monitor v3.61 This update to Process Monitor adds monitoring for RegSaveKey, RegLoadKey and RegRestoreKey APIs, as well as fixes a bug in the details output for some types of directory queries.

What’s New (November 04, 2020)

AdExplorer v1.50 This release of AdExplorer, an Active Directory (AD) viewer and editor, adds support for exporting data from the «Compare» dialog and is now available for x64 and ARM64.

Disk Usage (DU) v1.62 This release of Disk Usage (DU), a tool for viewing disk usage information, now also accounts for the MFT (Master File Table), removes the MAX_PATH limitation and is now available for ARM64.

What’s New (October 15, 2020)

VMMap v3.30 This update to VMMap, a utility that reports the virtual memory layout of a process, identifies .NET Core 3.0 managed heaps.

RAMMap v1.60 This release to RAMMap, a utility that analyzes and displays physical memory usage, adds customizable map colors and a new command line option, -e, to empty the different types of system working sets.

What’s New (September 17, 2020)

Sysmon v12.0 In addition to several bug fixes, this major update to Sysmon adds support for capturing clipboard operations to help incident responders retrieve attacker RDP file and command drops, including originating remote machine IP addresses.

Process Monitor v3.60 This update to Process Monitor, a utility that logs process file, network and registry activity, adds support for multiple filter item selection, as well as decoding for new file system control operations and error status codes.

Procdump v10.0 This release of Procdump, a flexible tool for manual and trigger-based process dump generation, adds support for dump cancellation and CoreCLR processes.

ARM64 ports In addition, several tools have been newly ported to and are now available for ARM64. These include: AdInsight v1.2, AutoLogon v3.1, Autoruns v13.98, ClockRes v2.1, DebugView v4.9, DiskExt v1.2, FindLinks v1.1, Handle v4.22, Hex2Dec v1.1, Junction v1.07, PendMoves v1.02, PipeList v1.02, Procdump v10.0, Process Explorer v16.32, RegDelNull v1.11, RU v1.2, Sigcheck v2.8, Streams v1.6, Sync v2.2, VMMap v3.26, WhoIs v1.21 and ZoomIt v4.52. Download all ARM64 tools in a single download with the Sysinternals Suite for ARM64.

What’s New (June 24, 2020)

Sysmon v11.10 This update to Sysmon now captures stream content for alternate data streams into logged events, which is useful for investigating downloads tagged with ‘Mark of the Web’ (MOTW) streams, introduces an ‘is-any’ filter condition, and fixes several bugs.

Sigcheck v2.80 Sigcheck, a flexible tool for showing file versions, file signatures, and certificate stores, introduces a -p option for specifying a trust GUID for signature verification, and it now shows certificate signing chains even when a certificate in the chain is untrusted.

Sysinternals June 24 Update Video Mark Russinovich covers what’s new in this update, with demos of Sysmon’s alternate data stream content capture and new features in Sigcheck.

What’s New (April 28, 2020)

Sysmon v11.0 This major update to Sysmon includes file delete monitoring and archive to help responders capture attacker tools, adds an option to disable reverse DNS lookup, replaces empty fields with ‘-‘ to work around a WEF bug, fixes an issue that caused some ProcessAccess events to drop, and doesn’t hash main data streams that are marked as being stored in the cloud.

Sysinternals April 27 Update Video Mark Russinovich covers what’s new in this update, with a demo of Sysmon’s new file delete monitoring and capture capability.

Sysinternals Utilities Index

Sysinternals Suite
The entire set of Sysinternals Utilities rolled up into a single download.

Sysinternals Suite for Nano Server
Sysinternals Utilities for Nano Server in a single download.

Sysinternals Suite for ARM64
Sysinternals Utilities for ARM64 in a single download.

AccessChk
v6.13 (October 15, 2020)
AccessChk is a command-line tool for viewing the effective permissions on files, registry keys, services, processes, kernel objects, and more.

AccessEnum
v1.32 (November 1, 2006)
This simple yet powerful security tool shows you who has what access to directories, files and Registry keys on your systems. Use it to find holes in your permissions.

AdExplorer
v1.50 (November 04, 2020)
Active Directory Explorer is an advanced Active Directory (AD) viewer and editor.

AdInsight
v1.2 (October 26, 2015)
An LDAP (Light-weight Directory Access Protocol) real-time monitoring tool aimed at troubleshooting Active Directory client applications.

AdRestore
v1.2 (November 25, 2020)
Undelete Server 2003 Active Directory objects.

Autologon
v3.10 (August 29, 2016)
Bypass password screen during logon.

Autoruns
v13.98 (June 24, 2020)
See what programs are configured to startup automatically when your system boots and you login. Autoruns also shows you the full list of Registry and file locations where applications can configure auto-start settings.

BgInfo
v4.26 (October 19, 2018)
This fully-configurable program automatically generates desktop backgrounds that include important information about the system including IP addresses, computer name, network adapters, and more.

BlueScreen
v3.2 (November 1, 2006)
This screen saver not only accurately simulates Blue Screens, but simulated reboots as well (complete with CHKDSK), and works on Windows NT 4, Windows 2000, Windows XP, Server 2003 and Windows 95 and 98.

CacheSet
v1.0 (November 1, 2006)
CacheSet is a program that allows you to control the Cache Manager’s working set size using functions provided by NT. It’s compatible with all versions of NT.

ClockRes
v2.1 (July 4, 2016)
View the resolution of the system clock, which is also the maximum timer resolution.

Contig
v1.8 (July 4, 2016)
Wish you could quickly defragment your frequently used files? Use Contig to optimize individual files, or to create new files that are contiguous.

Coreinfo
v3.31 (August 18, 2014)
Coreinfo is a new command-line utility that shows you the mapping between logical processors and the physical processor, NUMA node, and socket on which they reside, as well as the cache’s assigned to each logical processor.

Ctrl2cap
v2.0 (November 1, 2006)
This is a kernel-mode driver that demonstrates keyboard input filtering just above the keyboard class driver in order to turn caps-locks into control keys. Filtering at this level allows conversion and hiding of keys before NT even «sees» them. Ctrl2cap also shows how to use NtDisplayString() to print messages to the initialization blue-screen.

DebugView
v4.90 (April 23, 2019)
Another first from Sysinternals: This program intercepts calls made to DbgPrint by device drivers and OutputDebugString made by Win32 programs. It allows for viewing and recording of debug session output on your local machine or across the Internet without an active debugger.

Desktops
v2.0 (October 17, 2012)
This new utility enables you to create up to four virtual desktops and to use a tray interface or hotkeys to preview what’s on each desktop and easily switch between them.

Disk2vhd
v2.01 (January 21, 2014)
Disk2vhd simplifies the migration of physical systems into virtual machines (p2v.md).

DiskExt
v1.2 (July 4, 2016)
Display volume disk-mappings.

Diskmon
v2.01 (November 1, 2006)
This utility captures all hard disk activity or acts like a software disk activity light in your system tray.

DiskView
v2.41 (October 15, 2020)
Graphical disk sector utility.

Disk Usage (DU)
v1.62 (November 04, 2020)
View disk usage by directory.

EFSDump
v1.02 (November 1, 2006)
View information for encrypted files.

FindLinks
v1.1 (July 4, 2016)
FindLinks reports the file index and any hard links (alternate file paths on the same volume.md) that exist for the specified file.В A file’s data remains allocated so long as at it has at least one file name referencing it.

Handle
v4.22 (June 14, 2019)
This handy command-line utility will show you what files are open by which processes, and much more.

Hex2dec
v1.1 (July 4, 2016)
Convert hex numbers to decimal and vice versa.

Junction
v1.07 (July 4, 2016)
Create Win2K NTFS symbolic links.

LDMDump
v1.02 (November 1, 2006)
Dump the contents of the Logical Disk Manager’s on-disk database, which describes the partitioning of Windows 2000 Dynamic disks.

ListDLLs
v3.2 (July 4, 2016)
List all the DLLs that are currently loaded, including where they are loaded and their version numbers.

LiveKd
v5.62 (May 16, 2017)
Use Microsoft kernel debuggers to examine a live system.

LoadOrder
v1.01 (July 4, 2016)
See the order in which devices are loaded on your WinNT/2K system.

LogonSessions
v1.41 (November 25, 2020)
List the active logon sessions on a system.

MoveFile
v1.01 (January 24, 2013)
Allows you to schedule move and delete commands for the next reboot.

NotMyFault
v4.01 (November 18, 2016)
Notmyfault is a tool that you can use to crash, hang, and cause kernel memory leaks on your Windows system.

NTFSInfo
v1.2 (July 4, 2016)
Use NTFSInfo to see detailed information about NTFS volumes, including the size and location of the Master File Table (MFT) and MFT-zone, as well as the sizes of the NTFS meta-data files.

PendMoves
v1.2 (February 5, 2013)
Enumerate the list of file rename and delete commands that will be executed the next boot.

PipeList
v1.02 (July 4, 2016)
Displays the named pipes on your system, including the number of maximum instances and active instances for each pipe.

PortMon
v3.03 (January 12, 2012)
Monitor serial and parallel port activity with this advanced monitoring tool. It knows about all standard serial and parallel IOCTLs and even shows you a portion of the data being sent and received. Version 3.x has powerful new UI enhancements and advanced filtering capabilities.

ProcDump
v10.0 (September 17, 2020)
This command-line utility is aimed at capturing process dumps of otherwise difficult to isolate and reproduce CPU spikes. It also serves as a general process dump creation utility and can also monitor and generate process dumps when a process has a hung window or unhandled exception.

Process Explorer
v16.32 (April 28, 2020)
Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more. This uniquely powerful utility will even show you who owns each process.

Process Monitor
v3.61 (January 11, 2021)
Monitor file system, Registry, process, thread and DLL activity in real-time.

PsExec
v2.33 (March 23, 2021)
Execute processes on remote systems.

PsFile
v1.03 (June 29, 2016)
See what files are opened remotely.

PsGetSid
v1.45 (June 29, 2016)
Displays the SID of a computer or a user.

PsInfo
v1.78 (June 29, 2016)
Obtain information about a system.

PsKill
v1.16 (June 29, 2016)
Terminate local or remote processes.

PsPing
v2.01 (January 29, 2014)
Measure network performance.

PsList
v1.4 (June 29, 2016)
Show information about processes and threads.

PsLoggedOn
v1.35 (June 29, 2016)
Show users logged on to a system.

PsLogList
v2.8 (June 29, 2016)
Dump event log records.

PsPasswd
v1.24 (June 29, 2016)
Changes account passwords.

PsService
v2.25 (June 29, 2016)
View and control services.

PsShutdown
v2.52 (December 4, 2006)
Shuts down and optionally reboots a computer.

PsSuspend
v1.07 (June 29, 2016)
Suspend and resume processes.

PsTools
v2.47 (March 23, 2021)
The PsTools suite includes command-line utilities for listing the processes running on local or remote computers, running processes remotely, rebooting computers, dumping event logs, and more.

RAMMap
v1.60 (October 15, 2020)
An advanced physical memory usage analysis utility that presents usage information in different ways on its several different tabs.

RegDelNull
v1.11 (July 4, 2016)
Scan for and delete Registry keys that contain embedded null-characters that are otherwise undeleteable by standard Registry-editing tools.

Registry Usage (RU)
v1.2 (July 4, 2016)
View the registry space usage for the specified registry key.

RegJump
v1.1 (April 20, 2015)
Jump to the registry path you specify in Regedit.

SDelete
v2.04 (November 25, 2020)
Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.

ShareEnum
v1.6 (November 1, 2006)
Scan file shares on your network and view their security settings to close security holes.

ShellRunas
v1.01 (February 28, 2008)
Launch programs as a different user via a convenient shell context-menu entry.

Sigcheck
v2.80 (June 24, 2020)
Dump file version information and verify that images on your system are digitally signed.

Streams
v1.6 (July 4, 2016)
Reveal NTFS alternate streams.

Strings
v2.53 (July 4, 2016)
Search for ANSI and UNICODE strings in binary images.

Sync
v2.2 (July 4, 2016)
Flush cached data to disk.

Sysmon
v13.02 (March 23, 2021)
Monitors and reports key system activity via the Windows event log.

TCPView
v4.0 (March 23, 2021)
Active socket command-line viewer.

VMMap
v3.31 (November 04, 2020)
VMMap is a process virtual and physical memory analysis utility.

VolumeId
v2.1 (July 4, 2016)
Set Volume ID of FAT or NTFS drives.

Whois
v1.20 (December 11, 2019)
See who owns an Internet address.

WinObj
v3.02 (March 23, 2021)
The ultimate Object Manager namespace viewer is here.

ZoomIt
v4.52 (December 11, 2019)
Presentation utility for zooming and drawing on the screen.