PsInfo v1.79

By Mark Russinovich

Published: March 30, 2023

Download Download PsTools (5 MB)


PsInfo is a command-line tool that gathers key information about the local or remote Windows NT/2000 system, including the type of installation, kernel build, registered organization and owner, number of processors and their type, amount of physical memory, the install date of the system, and if it's a trial version, the expiration date.


Just copy PsInfo onto your executable path, and type "psinfo".

Using PsInfo

By default PsInfo shows information for the local system. Specify a remote computer name to obtain information from the remote system. Since PsInfo relies on remote Registry access to obtain its data, the remote system must be running the Remote Registry service and the account from which you run PsInfo must have access to the HKLM\System portion of the remote Registry.

In order to aid in automated Service Pack updates, PsInfo returns as a value the Service Pack number of system (e.g. 0 for no service pack, 1 for SP 1, etc).

Usage: psinfo [[\\computer[,computer[,..] | @file [-u user
[-p psswd]]] [-h] [-s] [-d] [-c [-t delimiter]] [filter]

Parameter Description
\\computer Perform the command on the remote computer or computers specified. If you omit the computer name the command runs on the local system, and if you specify a wildcard (\\*), the command runs on all computers in the current domain.
@file Run the command on each computer listed in the text file specified.
-u Specifies optional user name for login to remote computer.
-p Specifies optional password for user name. If you omit this you will be prompted to enter a hidden password.
-h Show list of installed hotfixes.
-s Show list of installed applications.
-d Show disk volume information.
-c Print in CSV format.
-t The default delimiter for the -c option is a comma, but can be overridden with the specified character.
filter Psinfo will only show data for the field matching the filter. e.g. "psinfo service" lists only the service pack field.

Example Output

C:\> psinfo \\development -h -d

PsInfo v1.6 - local and remote system information viewer
Copyright (C) 2001-2004 Mark Russinovich
Sysinternals -

    System information for \\DEVELOPMENT:
    Uptime: 28 days, 0 hours, 15 minutes, 12 seconds
    Kernel version: Microsoft Windows XP, Multiprocessor Free
    Product type Professional
    Product version: 5.1
    Service pack: 0
    Kernel build number: 2600
    Registered organization: Sysinternals
    Registered owner: Mark Russinovich
    Install date: 1/2/2002, 5:29:21 PM
    Activation status: Activated
    IE version: 6.0000
    System root: C:\WINDOWS
    Processors: 2
    Processor speed: 1.0 GHz
    Processor type: Intel Pentium III
    Physical memory: 1024 MB
    Volume Type Format Label Size Free Free
    A: Removable 0%
    C: Fixed NTFS WINXP 7.8 GB 1.3 GB 16%
    D: Fixed NTFS DEV 10.7 GB 809.7 MB 7%
    E: Fixed NTFS SRC 4.5 GB 1.8 GB 41%
    F: Fixed NTFS MSDN 2.4 GB 587.5 MB 24%
    G: Fixed NTFS GAMES 8.0 GB 1.0 GB 13%
    I: CD-ROM 0%
    Q: Remote 0%
    T: Fixed NTFS Test 502.0 MB 496.7 MB 99%
    OS Hot Fix Installed
    Q147222 1/2/2002
    Q309521 1/4/2002
    Q311889 1/4/2002
    Q313484 1/4/2002
    Q314147 3/6/2002
    Q314862 3/13/2002
    Q315000 1/8/2002
    Q315403 3/13/2002
    Q317277 3/20/2002

How it Works

PsInfo uses the Remote Registry API to read system information from a system's Registry, and WMI to determine whether Windows XP installations have been activated.

Download Download PsTools (5 MB)


PsInfo is part of a growing kit of Sysinternals command-line tools that aid in the administration of local and remote systems named PsTools.

Runs on:

  • Client: Windows 8.1 and higher.
  • Server: Windows Server 2012 and higher.