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

Possible Duplicate:
What does the SysRq key do?

Does the SYSRQ key have any function in Windows?
I know it is used in Linux to pass commands directly to the kernel, and in old OSs for similar tasks, but is it used in modern versions of Windows?

An answer to a similar question What does the SysRq key do? mentioned that it was "a programmable key", so is reprogramming that key builtin functionality for Windows, or is a 3rd party program necessary?

EDIT: Not a duplicate; I am asking for more information about other possible uses for the key (such as remapping)

share|improve this question

marked as duplicate by RedGrittyBrick, iglvzx, Andrew Lambert, bwDraco, Ƭᴇcʜιᴇ007 May 14 '12 at 17:18

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

It's for taking screenshots! ;) – iglvzx May 10 '12 at 22:03
I think they closed it because the Wikipedia page does mention a use in Windows (debugging in NT). Also, since the SysReq key is technically just Alt+PrtScr, Windows does use it to capture just the active window. As for programming/remapping, you can remap it, but you need to remap Alt+PrtScr (just like you cannot remap @ since it is not a separate key; you remap Shift+2 instead). – Synetech Jun 27 '12 at 5:10
up vote 2 down vote accepted

nothing standard in windows and newer keyboards do not even have that key (some have alt-scrLk for sysrq), though used for debugging in some windows versions. see the wiki article here for details:

share|improve this answer
I've never seen a full-sized PC keyboard which lacked the SysRq key. – Andrew Lambert May 10 '12 at 22:17
The one I am using is fullsize from MicroSoft and it does not have this key, at least not labeled as such. – johnshen64 May 10 '12 at 22:22
No doubt there are keyboards, many of them, without the key. But they aren't in danger of outnumbering those that do any time soon. – Andrew Lambert May 10 '12 at 22:36
I have a full-sized Logitech keyboard in front of me without a SysRq key. (It's Alt+PrintScrn I believe, which isn't that unusual for 101-key keyboards honestly) – Shinrai May 10 '12 at 22:53
I believe SysRq has always been alt-prtscr. Like Break. – surfasb May 10 '12 at 23:04

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