There are two ways you can generate SSH one is by windows 10 openssh client which you will have to enable from your windows settings

The second way is through SourceTree's bash terminal.

The Windows 10 OpenSSH way:

  1. Go to settings and click on "Apps"
  2. Click on optional features
  3. Click "Add a feature" and install the "OpenSSH Client" (picture says beta because it is an older picture)
  4. Once it is installed you can run "ssh-keygen" on your cmd prompt

The Sourcetree way:

  1. This guide assumes you have Sourcetree installed 
  2. Open up source tree and click on the terminal button
  3. type "ssh-keygen" in the terminal, follow through
  4. You should find your keys generated in the same directory as your terminal prompt

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