How to install ENA Driver on Amazon EC2 Windows instance

ENA is a custom network interface optimized to deliver high throughput and packet per second (PPS) performance, and consistently low latencies on EC2 instances. Using ENA, customers can utilize up to 20 Gbps of network bandwidth on certain EC2 instance types. It is worth noting that, this cannot be enabled on T2 Instances. Most times when you increase or change the instance type of a server, the adapter changes and this can cause issues for you. Please refer to these articles on Driver Management on AWS, Windows clients, and servers. “How to remove a Printer from Windows 10 via PowerShell, Windows registry and Print Management, how to configure Windows instance using EC2 Launch for Server 2016, how to launch an EC2 instance, and how to upgrade AWS Network Adapter from Redhat to Citrix PV and then to AWS PV driver.

Here are steps for installing the ENA Driver:
-Install the driver for the operating system from this link.
– Locate the Operating system relevant to you and right by selecting copy link address

– Copy this to the browser of the Instance, where you wish to install the adapter. This will automatically download the zip file containing the ENA network adapter
– Open the command prompt (CLI)
and navigate to the folder containing the path and run d command in redRun pnputil -i -a ena.inf

4. Now stop the instance by shutting it down

5. Enable ENA support on the instance, run this command below
Note: (This step has to be done from your local computer) on on the instance

6. Open the command prompt (CLI)
Type in aws configure and follow the prompt (instruction) and enter your keys

7. Modifying the instance Attribute (AWS-CLI)
aws ec2 modify-instance-attribute –instance-id instance_id –ena-support

And to describe the instance (AWS CLI)

aws ec2 describe-instances --instance-ids instance_id --query "Reservations[].Instances[].EnaSupport"


aws ec2 modify-instance-attribute --instance-id i-0fxxxxxx82 --ena-support
aws ec2 describe-instances --instance-ids i-0fxxxxxx682 --query "Reservations[].Instances[].EnaSupport"

Note: At the moment the steps have changed used by AWS but the syntax still remains the same
Now you have to download, navigate to the folder, and run the

And follow the steps above again

I hope you found this blog post helpful. If you have any questions, please let me know in the comment session. I welcome you to subscribe to my YouTube Channel.

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