Hardened Windows Server 2025

CloudInfra Secure delivers Windows Server 2025 images hardened before publication, so every EC2 instance is protected from first boot, no hardening project, no specialist required. Day one isn't the hard part, though; staying hardened and proving it to an auditor is.

This is a repackaged software product wherein additional charges apply for hardening.

Every image includes the CloudInfra Secure engine.

• Verify in one command. Confirm product integrity, the deployed baseline, live posture and any drift instantly, on any server.
• Detect and correct drift. A scheduled check re-audits the baseline and alerts only on regressions, with optional auto-remediation and email alerts.
• Produce audit-ready reports. Self-contained HTML, JSON and CSV, with a security score, per-framework alignment and drill-down detail.
• Change safely and reversibly. Every change is previewed, snapshotted and reversible; the engine never reboots your server for you.
• Pick a role-tuned baseline. Domain Controller, IIS, SQL Server, Remote Desktop and more.

The 300+ technical controls map to recognised frameworks. Including DISA STIG, NIST SP 800-53, NIST CSF, NIST SP 800-171, PCI DSS, SOC 2, ISO/IEC 27001, HIPAA, UK Cyber Essentials and NIS2. Shown as alignment gauges in every report, so you can share evidence of where you stand.

Behind the security score sit 300+ concrete Windows Server settings, aligned to recognised hardening benchmarks:

• Accounts and authentication. Password, account-lockout and Kerberos policy, plus interactive-logon and anonymous-access restrictions.
• Legacy protocols removed. SMBv1, LM/NTLMv1 and obsolete TLS/SSL disabled; SMB and LDAP signing enforced.
• Attack-surface reduction. Microsoft Defender ASR rules, Credential Guard, LSA protection and virtualization-based security.
• Audit and logging. A complete advanced audit policy and PowerShell script-block logging for SIEM-ready evidence.
• Least privilege. User Rights Assignment tightened, unnecessary services and Windows features disabled, Windows Firewall enforced.
• Remote access. RDP encryption, Network Level Authentication and restricted administrative access.

• Native and dependency-free. Pure PowerShell using built-in Windows tooling. No agents, no Python, Node or SQL to patch or attack.
• Authenticode code-signed with a SHA-256 manifest covering every file, so you can prove it is genuine and untampered.
• Fleet-first. Machine-readable JSON and exit codes for automation across hundreds of servers.

Government, defence, financial services, healthcare and managed service providers rely on CloudInfra Secure to stand up Zero Trust, least-privilege Windows Server estates on AWS. From a single jump box to a fleet of hundreds, you get a repeatable, evidence-backed security baseline for STIG and NIST hardening, vulnerability reduction and continuous configuration management.

• Faster to compliant. Skip weeks of baseline engineering and launch a Windows Server that is already hardened and documented.
• Lower risk of breakage. Every control is tested, previewed, snapshotted and reversible, so you harden without unplanned downtime.
• Always auditable. Scheduled and on-demand reports give auditors current evidence, not a stale point-in-time snapshot.
• No lock-in, no agents. Native PowerShell and open JSON slot into your existing AWS, SIEM and automation tooling.

Note: Launch the instance with an EC2 key pair, then retrieve the auto-generated Administrator password from the EC2 console (decrypted with your key pair). The hardened baseline enforces a 14-character minimum password policy, any password you set afterwards, and any local account you create, must contain at least 14 characters, including uppercase, lowercase, numbers and symbols.

Launch the AMI, run verify and generate your first report. A verified, compliant server in minutes. Full documentation: docs.cloudinfrastructureservices.co.uk 

Learn more about our Hardened images CloudInfra Secure Images 

CloudInfra Secure helps organisations secure their server infrastructure.