Node-red is not recognized as an internal or external command

I am working on windows 10 and had downloaded node red for a project,using the node-red command on the command line everything was functioning and I could use it just fine.A couple of days ago suddenly it stopped working,when I use the command now I get "node-red is not recognized as an internal or external command ,operable program or batch file" , I was trying to fix an unrelated problem and changed a path(on enviroment variables) ,and now have no idea what to do.I am a begginer with computer related stuff so I would appreciate some help in fixing the issue.I tried uninstalling and reinstalling but nothing,I assume that its something related to the path I changed.Any help on what the general path is supposed to be so I can fix it would be appreciated.

Hi Mike, if you search this forum for "node-red is not recognized as an internal or external command " - there are several threads with this exact issue.

Try this one....

Ps, I've updated the title to reflect the real issue and to help future users with this problem.