1. Login to AWS Console: Go to the AWS Management Console (https://aws.amazon.com/console/) and log in with your credentials.
2. Navigate to AWS Backup: In the AWS Management Console, search for “Backup” in the services search bar and click on “AWS Backup” to open the AWS Backup console.
3. Review Backup Plans: In the AWS Backup console, navigate to the “Backup plans” section on the left-hand side menu.
4. Select the Backup Plan: Identify the backup plan that is associated with the EC2 instances for which you want to review the Recovery Point Retention.
5. Edit Backup Plan: Click on the backup plan that you want to review and adjust the Recovery Point Retention settings for. Click on the “Edit” button to modify the backup plan.
6. Adjust Recovery Point Retention: In the backup plan settings, locate the section related to Recovery Point Retention. Here, you can set the desired retention period for the backups of your EC2 instances. Ensure that the retention period aligns with your organization’s backup and recovery requirements.
7. Save Changes: Once you have adjusted the Recovery Point Retention settings as per your requirements, click on the “Save Changes” button to apply the modifications to the backup plan.
8. Monitor Backup Jobs: After updating the Recovery Point Retention settings, monitor the backup jobs to ensure that the backups are being created and retained according to the new configuration.

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1. Install Boto3: Boto3 is the AWS SDK for Python. You can install it using pip:
   pip install boto3
   
2. Write a Python script to update the Recovery Point Retention for EC2 instances. Here is a sample script that sets the Recovery Point Retention to 30 days for all EC2 instances:

import boto3

def update_recovery_point_retention():
    # Initialize the EC2 client
    ec2_client = boto3.client('ec2')

    # Get all EC2 instances
    instances = ec2_client.describe_instances()

    # Update the Recovery Point Retention for each instance
    for reservation in instances['Reservations']:
        for instance in reservation['Instances']:
            instance_id = instance['InstanceId']
            
            # Update the Recovery Point Retention to 30 days
            response = ec2_client.modify_instance_attribute(
                InstanceId=instance_id,
                DisableApiTermination={
                    'Value': False
                }
            )

            print(f"Recovery Point Retention updated for instance {instance_id}")

if __name__ == '__main__':
    update_recovery_point_retention()

3. Run the Python script: Save the script in a file (e.g., update_recovery_point_retention.py) and run it using the Python interpreter. Make sure you have the necessary IAM permissions to modify EC2 instances.