This tutorial will show you how to access a remote computer with running SSH on it with Putty.
Putty is very popular and powerful remote client for Raw, Telnet, Rlogin and SSH protocols.
Putty can be downloaded from Putty.nl

It is stand alone application so once downloaded it can be used without installation. Just start putty.exe and you will see the Putty configuration screen.

Put the IP of your server or a particular domain name pointed to it into 'Host Name (or IP address)' filed as it is shown above and set the 'Protocol' to be SSH.
Then expand the 'Category' section in left and then choose SSH.

Once it is opened set the 'Preferred SSH protocol version' to be '2' and then go back to the first screen as clicking on 'Session' on the top.

To have this session stored type a name in the 'Saved Sessions' field then 'Save'. From now on you will need only to click on the stored session name and this will open a window with the saved settings.

If you want to see if there are any error messages you can choose for 'Close window on exit' option to be 'Only on clean exit'.

When you are ready click on 'OK' to start the login.

If you have all the settings correctly setup you should see the login prompt.