Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

With command prompt, can I turn my number lock on or off? I'm hoping to do it with just one line, but I'm assuming I can't as that would have shown up in google.

share|improve this question
Please remember to include the OS you are using in your question. command-line can apply to Windows, Linux, Unix, OSX, BSD, BeOS, Dos, etc etc. – terdon May 14 '13 at 10:38
up vote 0 down vote accepted

If you search google for "utility to turn off num lock", you will get a good answer.

It is a command line tool, just a simple little exe, 'numlock.exe off'

Alternatively, there are dozens of code examples if you want to build your own application, using any number of free development tools :)

share|improve this answer
I didnt take the risk of posting the rjl link :) – Michael May 14 '13 at 2:12
It look like a reasonably legit site - there's even an address and phone number. Of course, as with any downloaded software, caveat emptor! – hdhondt May 14 '13 at 2:15
And thats my latin lesson for the day – Michael May 14 '13 at 2:19
I should have said so in the original post, but I'd like to do it with just regular command prompt. Sorry. – Frankie May 14 '13 at 3:57
I don't understand. Hack the low level hardware with a one line command prompt? Without custom/3rd party tools? – Michael May 14 '13 at 4:27

Google gave a few quick answers when I tried it, for example NUMLOCK.EXE and CAPSLOCK.EXE from this site:

Once installed, the relevant commands are:



share|improve this answer
BTW, I searched for "num lock command prompt" – hdhondt May 14 '13 at 2:17
I should have said so in the original post, but I'd like to do it with just regular command prompt. Sorry. – Frankie May 14 '13 at 3:56
There is no way to do it with standard Windows commands. With Win 95(?) you could use Windows to create an assembler file that would do the job, but I doubt very much that will work with current versions of Windows. See – hdhondt May 15 '13 at 11:12

For UNIX there is NumLockX to enable and disable numlock from the console.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.