NumLock

NumLock v2.00 - Command-Line Num Lock Key Control

Toggle the Num Lock key on or off from the command line for startup automation and scripting

FREE
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Control the Num Lock Key from the Command Line

Tired of your Num Lock key being off when you start your computer? NumLock is a lightweight, no-frills command-line tool that allows you to easily toggle the Num Lock key on or off with a simple command. There is no user interface -- just run the program and it will instantly perform the task.

Add NumLock to your Windows Startup folder, login scripts, or batch files to ensure the Num Lock key is always in the state you want. It is the simplest way to automate Num Lock control across workstations, servers, and remote desktop environments.

Who Is This For?

  • Users who prefer Num Lock always ON -- Add NumLock to your Startup folder and never worry about toggling the key again.
  • IT administrators -- Deploy NumLock across workstations via login scripts or Group Policy to enforce consistent keyboard behavior.
  • Script developers -- Integrate Num Lock control into batch files, scheduled tasks, or automated workflows.
  • Remote desktop users -- Ensure the Num Lock key is in the correct state when connecting to remote machines.

Key Features

On/Off/Toggle Pass "on" or "off" on the command line to set the Num Lock state explicitly. Run without arguments to toggle the current state.
Instant Execution Launches, sets the Num Lock state, and exits in under a second. No delay, no prompts, no process left running.
Script-Friendly Add NumLock to any login script, batch file, Windows Startup folder, or Group Policy startup sequence for hands-off automation.
Self-Closing NumLock automatically exits after setting the key state. No process left running, no memory consumed, no cleanup needed.
Lightweight Tiny executable that takes up virtually no disk space. No frameworks, no runtimes, no additional files required.

Fully Portable -- Zero Installation

No Installation Required
No Installation Required Runs directly from an .exe file. No setup wizard, no "Next, Next, Finish."
Runs From USB
Runs From USB Copy to a flash drive and use on any PC. IT techs carry these on a keychain for on-site support.
Leaves No Trace
Leaves No Trace No files left behind after use. Delete the folder and it is gone completely.
No Registry Changes
No Registry Changes Does not modify the Windows registry, system settings, or install drivers.
Self-Contained
Self-Contained Everything the program needs lives in its own folder. No scattered DLLs or AppData clutter.
No Admin Rights Needed
No Admin Rights Needed Runs under standard user accounts. No UAC prompts, no IT ticket required.
Lightweight
Lightweight Tiny footprint, typically under 1 MB. No frameworks, runtimes, or bloated dependencies.
Instant Startup
Instant Startup Launches in under a second. No splash screens, no loading bars, no waiting.

Command Line Options

NumLock.exe on|off

  • on -- Turns Num Lock ON.
  • off -- Turns Num Lock OFF.
  • (no argument) -- Toggles the current Num Lock state.

Startup automation: Press Win+R, type shell:startup and press Enter. Create a shortcut to NumLock.exe in this folder with your desired parameter (e.g., target: C:\Path\To\NumLock.exe on).

See DEMO.BAT included in the download for a complete demo of all features.

Windows Compatibility

Windows 11 Win 11
Windows 10 Win 10
Windows 8 Win 8
Windows 7 Win 7

Download NumLock

Version History

v2.00 March 13, 2025

Rewrote the entire application.
Added support for Windows 7 and all newer Windows operating systems.
Dropped support for all Windows versions before 2007.

v1.01 January 15, 2005

Updated the close and exit of the application so it would not leave traces behind.
Added a demo.bat file for demonstrating features and usage.

v1.00 May 12, 2001

Initial version.

What Users Are Saying

★★★★★ 5 out of 5 Based on 1,000 ratings
40,000+ downloads
★★★★★

"Every workstation login script includes this. Users always want Num Lock on by default."

-- Tony V., IT Admin
★★★★★

"Eliminates one of the most common helpdesk calls. Tiny utility, huge time saver."

-- Patricia W., Helpdesk

Download NumLock

NumLock v2.00
Windows 11, 10, 8, 7
Download Download v2.00
95 KB SHA256: 002222982247...98af Freeware Updated: March 13, 2025

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Support NumLock Development

NumLock is completely free. If this tool has saved you time, consider making a donation to help fund continued development and new features.

Support and Information

Frequently Asked Questions

Find answers to common questions about NumLock.

View FAQ
Need Help?

Found a bug or have a question? We are here to help.

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Uninstall

To uninstall, simply delete the program folder. No registry entries or system files are left behind.

How to Update

Download the latest version and extract over your existing folder, or to a new location. Settings are preserved.

Privacy: This software does not collect, transmit, or store any personal data. No internet connection required.

End-User License Agreement (EULA)