

Overview
Amazon EC2 is the proven, reliable, and secure cloud for your Windows Server workloads. Amazon creates and manages Microsoft Windows Server 2025 AMIs providing a reliable and quick way to launch Windows Server 2025 on EC2 instances. These images support Nitro-based instances with Unified Extensible Firmware Interface (UEFI) to provide enhanced security. These images also come with features such as Amazon EBS gp3 as the default root volume and the AWS NVMe driver pre-installed, which give you faster throughput and maximize price-performance. In addition, you can seamlessly use these images with pre-qualified services such as AWS Systems Manager, Amazon EC2 Image Builder, and AWS License Manager.
Highlights
- Built, updated, and fully-patched by AWS for Windows Server running on EC2
- Support Nitro-based instances with Unified Extensible Firmware Interface (UEFI) to provide enhanced security and better price-performance
- Use these images seamlessly with pre-qualified AWS services such as AWS Systems Manager, Amazon EC2 Image Builder, and AWS License Manager.
Details
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Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Changes:
- AWSPowerShell v4.1.791
- cfn-bootstrap v2.0.34
- EC2LaunchV2 v2.0.2107
- SSM v3.3.1957.0
- Windows Security Updates current to April 8th 2025
Additional details
Usage instructions
Connect to your EC2 Windows instances following https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/connect.html
Resources
Vendor resources
Support
Vendor support
AWS Support has been successfully supporting our customers who run Microsoft Windows-based EC2 instances in the AWS cloud since 2008 when we first launched Windows Server on EC2. AWS has further enhanced our support capabilities with a new additional direct engagement between AWS Support and Microsoft Support.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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