Double-click on the PuTTY icon and a "PuTTY Configuration" window will pop up (as shown in the image below). In the "Host Name (or IP address)" box, enter:login.msi.umn.edu.
In the left panel, under Window, select "Translation". Ensure the "Remote character set" is UTF-8
[This step is optional. It is required only if you wish to use programs with a graphical interface. Under the "SSH" category, select "X11". Check the box next to "Enable X11 forwarding". (Make certain you have a local X client for Windows such as Xming configured, or this step will have no effect and X programs will not be able to open the display.)
Return to "Session" in the left panel and in the "Saved Sessions" box, type in the name you would like to use to refer to this session, then click "Save".
The next time you start PuTTY you will be able to recall a saved profile by clicking on the name and then clicking on "Load". Click on "Open" to start the connection.
The first time you connect to a server you may be asked to cache the server fingerprint. This is a safety feature of ssh. Go ahead and click "Yes" for now. You may be asked twice.
You will be asked for your password. You can avoid entering it again when connecting to another server when using ssh keys; please see thessh keyspage for instructions if interested.
PuTTY is now configured to connect to MSI's login node. From here, you can ssh to MSI's HPC clusters.