change keypairs ec2 running instance

Question

Hello i\'ve made a big mistake with may key pairs on a ec2 Instance. I can\'t connect with sftp and putty because the private key is wrong.

How can i get access to my in

Answer 1

I think you need to rebuild the instance with a old(correct) key pair.

http://docs.amazonwebservices.com/AWSSecurityCredentials/1.0/AboutAWSCredentials.html#EC2KeyPairs