How to connect to your EC2 instance using SSH with putty

For example, after spinning a new EC2 instance with Amazon Linux Image (AMI)

Upon "Launch" of your instance, at the "Select an existing key pair or create a new key pair" window.

If you have not created a keypair before, select "Create a new key pair", give it a keypair name

Click "Download Key Pair"

The file will be downloaded as "your-keypair-name".pem

Save to your computer.

run puttygen

load the above .pem file and then save the private key as a .ppk format

After launching your instance, at the "Description" tab of your instance, locate the IPv4 public IP

connect with putty as

putty -ssh -i path-to-your-private-key.ppk ec2-user@your-instance-publicip