ssh: connect to host localhost port 22: Connection refused on Windows 10

I've been trying to make a multi node cluster with hadoop, but my mates can't ssh to my server. I have hadoop working, and daemons launched, but when I try to execute the command ssh localhost it gives me the error ssh: connect to host localhost port 22: Connection refused

So if even I can't login to my localhost, how would my mates be able to do it..

I've been having this problem since a week and i've tried lot of things so far but nothing seems to be working.