AWS EC2 Windows RDP Locked – Need Immediate Fix

My Windows-based EC2 instance is currently refusing RDP connections after too many failed log-in attempts. I already have the correct PEM key and access to the AWS console; what I need is a specialist who can:

• Use the PEM key to reset the Administrator password (or create a temporary one) and re-enable RDP so I can get straight back into the server.
• Check the current security groups, NACLs, firewall rules and any local policies—the instance may still be on default settings; I’m honestly not sure—and adjust them if they’re contributing to the lockout.
• Put in place a permanent safeguard (for example, account lockout policies, hardened RDP settings, automated blocking of repeated IP failures, or an IAM/SSM-based access workflow) so this situation doesn’t reoccur.

Acceptance criteria
1. I can successfully log in via RDP from an allowed IP.
2. You provide a brief outline of the changes made plus a step-by-step guide I can refer to in future.
3. The preventive measures are active and tested.

AWS Systems Manager, EC2Launch/EC2Config, PowerShell, and standard Windows security tools are all acceptable methods—as long as we achieve quick recovery with no data loss.