Putty

Putty for Windows can be downloaded from here.

Install the complete package in a convenient directory.

In Control Panel search for Path. Choose Click to edit the System environment variables.

In the dialogue click on Environment Variables. Select the PATH in the System Variables section and click Edit. Type a semicolon (;) and then add the installation path to the end of the variable value.

Generate a private and public keypair by executing in a cmd-console the program puttygen. Click Generate - follow the instructions. Save the Public and Private key in a convenient directory, where you can find it later.

In Putty attach your Private key by loading a profile (like bren@school) and find in the configuration as shown below.