Resource Monitor

  • Authors: Alex Hall, Joseph Lee, beqa gozalishvili, Tuukka Ojala, Ethin Probst and other NVDA contributors
  • Download stable version
  • NVDA compatibility: 2021.3 and later

This add-on gives information about CPU load, memory usage and other resource usage information.


  • NVDA+Shift+E: presents used ram, average processor load, and battery info if available.
  • NVDA+Shift+1: presents the average processor load and if multicore CPU's are present the load of each core.
  • NVDA+Shift+2/5: presents the used and total space for both physical and virtual ram.
  • NVDA+Shift+3: presents the used and total space of the static and removable drives.
  • NVDA+Shift+4: presents battery percentage, charging status, remaining time (if not charging), and a warning if the battery is low or critical.
  • NVDA+Shift+6: presents CPU Architecture 32/64-bit and Windows version and service pack numbers.
  • NVDA+Shift+7: presents the system's uptime.

If you have NVDA 2013.3 or later installed, you can change these shortcut keys via input gestures dialog.

Usage notes

This add-on does not replace task manager and other system information programs for Windows. Also note the following:

  • Resource information cannot be copied to clipboard if running the add-on in secure screens.
  • CPU usage is given for logical processors, not physical cores. This is noticeable for processors which uses Hyper-Threading where number of CPU's is twice the number of CPU cores.
  • If there is heavy disk activity such as copying large files, there might be delays when obtaining disk usage information.
  • This add-on requires Windows 7 Service Pack 1 or later.

Note on license: this add-on uses Psutil, licensed under 3-Clause BSD License which is compatible with GNU General Public License.

Version 22.03

Version 22.03 is the last stable version to support Windows 7 Service Pack 1, 8, and 8.1.

  • NVDA 2021.3 or later is required.
  • A warning message will be displayed when attempting to install the add-on on Windows 7, 8, and 8.1.
  • Updated psutil dependency to 5.9.0.

Version 22.01

  • NVDA 2021.2 or later is required.

Version 21.10

  • NVDA 2021.1 or later is required due to changes to NVDA that affects this add-on.

Version 21.08

  • Minimum Windows release requirement is now tied to NVDA releases.
  • Windows builds 20348 and 22000 are recognized as Windows Server 2022 and Windows 11, respectively.
  • On Insider Preview builds, Windows release such as "Windows 10" will not be used. Instead NvDA will announce "Windows Insider".
  • On 64-bit systems, processor architecture (x64 or ARM64) will be announced as part of Windows version information.

Version 21.04

  • NVDA 2020.4 or later is required.
  • Updated psutil dependency to 5.8.0.
  • When pressing add-on commands twice to copy resource information to clipboard, NVDA will announce resource summary that is being copied.

Version 21.01

  • Updated psutil dependency to 5.7.3.
  • Shortened Windows version message.
  • On Windows 8.1, build.revision will be announced as part of Windows version message, similar to Windows 10.

Version 20.09

  • System uptime is now given as days, hours, minutes, seconds.
  • Windows Server Insider Preview build 20201 or later is properly recognized as a Server Insider build.

Version 20.07

  • Windows 10 Version 20H2 is properly recognized when obtaining Windows version information (NVDA+Shift+6).
  • Simplified Windows 10 version message i.e. Windows 10 YYMM instead of Windows 10verYYMM when pressing NVDA+Shift+6.

Version 20.06

  • Resolved many coding style issues and potential bugs with Flake8.

Version 20.04

  • Updated psutil dependency to 5.7.0.

Version 20.01

  • NVDA 2019.3 or later is required due to extensive use of Python 3.

Version 19.11

  • Improved detection of Windows Insider Preview builds, especially for 20H1 and beyond.

Version 19.07

  • Updated psutil dependency to 5.6.3.
  • Internal changes to battery status announcement command.

Version 18.12

  • Internal changes to support future NVDA releases.

Version 18.10

  • Code has been made more compatible with Python 3.
  • Updated psutil dependency to 5.4.7.
  • When obtaining disk capacity and memory usage, NVDA will no longer give errors if using a computer or a service with more than a petabyte of RAM or disk size.
  • Values for memory and disk usage are shown with up to two decimal places (e.g. 4.00 GB instead of 4.0 GB).
  • Improved detection of Windows Insider Preview builds.

Version 18.04

Version 18.04.x is the last release to support Windows releases earlier than 7 SP1.

  • Last release to support Windows Server 2003, Vista and Server 2008.
  • Better detection of Windows 10 releases and distinguishing between public and Insider Preview builds.

Version 17.12

  • Added support for 64-bit ARM processors on Windows 10.

Version 17.09

Important: Version 17.09.x is the last version to support Windows XP.

  • Last version to run on Windows XP.
  • Windows 10 build 16278 and later is recognized as Version 1709. A minor revision for this add-on will be released once Version 1709 stable build is released.

Version 17.07.1

  • Reintroduce support for Windows XP (broken since version 17.02).

Version 17.05

  • Announcement of system uptime (time passed since last boot; NVDA+Shift+7).

Version 17.02

  • Updated psutil dependency to 5.0.1.
  • When checking disk usage, NVDA will no longer present an error dialog on some systems where a removable media is not properly recognized (such as when a card isn't inserted into a card reader).)

Version 16.08

Starting with version 16.08, add-on releases will be shown as year.month.revision.

  • Various revisions of Windows 10 are now properly recognized (such as 1607 for build 14393).
  • Windows 10 build revisions (after installing cumulative updates) are properly recognized (such as 14393.51).
  • If using Insider Preview builds, this fact is recognized.

Changes for 4.5

  • Add-on repository has moved to GitHub (can be found at
  • Windows Server 2016 is properly recognized.

Changes for 4.0

  • Updated psutil dependency to 2.2.1.
  • Vastly improved performance when obtaining information on CPU load.
  • Added support for recognition of Windows 10.
  • In Windows 10, the build number of Windows will also be announced.
  • You can use Add-ons Manager to access add-on help.

Changes for 3.1

  • Resource Monitor officially supports Windows 8.1.
  • Updated translations.

Changes for 3.0

  • Updated psutil dependency to 1.2.1.
  • Announcement of current Windows version, CPU architecture and service pack if any (NVDA+Shift+6).
  • Ability to change add-on shortcut keys (NVDA 2013.3 or later).
  • Ability to copy individual resource information to clipboard by pressing resource commands two times.

Changes for 2.4

  • New languages: Chinese (simplified), Ukrainian.
  • Updated translations.

Changes for 2.3

  • Added Bulgarian translation.

Changes for 2.2

  • Added following translations: Arabic, Aragonese, Croatian, Dutch, Finnish, French, Galician, German, Hungarian, Italian, Japanese, Korean, Nepali, Polish, Portuguese (Brazil), Russian, Slovak, Slovenian, Spanish, Tamil and Turkish.

Changes for 2.1

  • Updated psutil dependency to version 0.6.1.
  • Fixed long delay when getting information of drives.
  • Code cleanup.

Changes for 2.0

  • added translation support and translation comments.

Changes for 1.0

  • Initial Release