i made a program on node-red.
How to do that automatically starts the dashboard.
i have window 10.
So the dashboard is automatically started if you have a flow that uses the dashboard nodes.
Do you mean you want Node-RED to automatically start when you start your PC?
If so see the section "Run Node-RED on Startup" https://nodered.org/docs/platforms/windows
Do let us know if that documentation isn't clear so that we can improve it.