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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 Runs directly from an .exe file. No setup wizard, no "Next, Next, Finish."
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 No files left behind after use. Delete the folder and it is gone completely.
No Registry Changes Does not modify the Windows registry, system settings, or install drivers.
Self-Contained Everything the program needs lives in its own folder. No scattered DLLs or AppData clutter.
No Admin Rights Needed Runs under standard user accounts. No UAC prompts, no IT ticket required.
Lightweight Tiny footprint, typically under 1 MB. No frameworks, runtimes, or bloated dependencies.
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
Win 11
Win 10
Win 8
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.
What Users Are Saying
★★★★★
"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
Windows 11, 10, 8, 7
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.
Contact Us
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)
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Download v2.00
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