Windows Security Best Practices Checklist

System Updates and Patching

[High] Enable automatic Windows updates
[High] Regularly check for and install Windows updates manually
[Medium] Configure Windows Server Update Services (WSUS) for enterprise environments
[Medium] Keep all third-party software up-to-date

User Account Management

[High] Use strong, unique passwords for all accounts
[High] Enable multi-factor authentication (MFA) where possible
[High] Implement the principle of least privilege for user accounts
[Medium] Regularly audit user accounts and remove unnecessary ones
[Medium] Use separate accounts for administrative tasks

Firewall and Network Security

[High] Enable and configure Windows Firewall
[High] Regularly review and update firewall rules
[Medium] Use network segmentation to isolate sensitive systems
[Medium] Implement intrusion detection and prevention systems (IDS/IPS)

Antivirus and Malware Protection

[High] Install and maintain up-to-date antivirus software
[High] Enable real-time scanning
[Medium] Conduct regular full system scans
[Medium] Use application whitelisting to prevent unauthorized software execution

Data Protection and Encryption

[High] Enable BitLocker drive encryption on all devices
[High] Use Encrypted File System (EFS) for sensitive files
[Medium] Implement secure backup solutions
[Medium] Use secure protocols (HTTPS, SFTP, etc.) for data transmission

Logging and Monitoring

[High] Enable and configure Windows Event Logging
[Medium] Implement centralized log management
[Medium] Regularly review security logs
[Medium] Set up alerts for suspicious activities

Physical Security

[High] Secure physical access to servers and workstations
[Medium] Implement screen lock policies
[Low] Use cable locks for mobile devices

Security Policies and Training

[High] Develop and enforce a comprehensive security policy
[High] Conduct regular security awareness training for all users
[Medium] Implement an incident response plan
[Medium] Regularly perform security audits and penetration testing

Note: This checklist provides a general overview of Windows security best practices.
The specific measures you need to implement may vary depending on your organization's requirements, industry regulations, and threat landscape.
Always consult with security professionals and stay informed about the latest security trends and threats.