startup not stoppable

I forgot to add the break to a startup program :l
now when i start the computer up it has a black screen and ctrl+T doesn't work.
i could just remake the program since its only a few lines but the computer is named, and i would like to use the name again.
Does anyone know a way to let me acces the program?

mod or emulator? if it's an emulator, report it to whoever made it. if it's the mod, it may be the program its self.

anyway, if you're on singleplayer you can go to your minecraft directory (in the launcher after clicking "edit profile", it's got a button to go to it), then navigate to saves then the name of your world. in the world folder, there's a "computers" folder, and if you know the id of your computer you can go to a folder named by it's id. right click the startup program, edit it with your favourite text editor, and bam, there's the code for the startup file. edit that and save, go back to your computer, restart (ctrl+r for ~2 seconds) and it'll load the new startup file. if you don't know the id, dunno what you can do apart from look at all of the id folders with a "startup" file

Thanks!
i got it to work again :)/>

Another method is to put a startup file on a disk (leave it empty). The file on the disk will be ran but not your internal startup file. This is useful in multiplayer where you don't have access to the server.