My instance changed the type and now is stuck in Initializating part.

Hello,

Most of the ec2 re-size fails due incompatibility of current size/os to new type. It is recommended keep your disk and network related drivers updated and compatible before you plan to change instance type. You can refer below links to see if it helps to resolve your issue. Thanks. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/resize-limitations.html https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/troubleshoot-change-instance-type.html

Check if the AMI you are using for Kali Linux support t2.xlarge instance type, sometimes old versions of Marketplace linux OS have some limitations, I checked the last AMI of Kali Linux and it works with t2.xlarge but maybe your AMI is too old. As the previos answer says, update OS packages, drivers and kernel. (Take an AMI before doing it so you can go back if something goes wrong) Hope this helps.