Contributed two documentation-driven feature updates to the MicrosoftDocs/azure-stack-docs repository, focusing on deployment flexibility and enhanced security guidance. Updated Azure Stack HCI deployment documentation to support flexible disk size requirements, enabling broader storage configurations and reducing operational constraints. Enhanced Azure Local documentation by incorporating coverage for critical OS security updates and Secure Boot certificate management, while also performing targeted cleanup to improve clarity for operators. Leveraged Markdown and technical writing skills to ensure precise, accessible documentation. The work addressed deployment friction and security posture, providing field engineers and customers with clearer, more actionable guidance for managing Azure Stack environments and updates.