add windows iso update

Let's look at the process in summary first:​

• Download Windows 10 21H1 ISO: Obtain the ISO file for the Windows 10 21H1 update.
• Create an Answer File: Generate an answer file (Autounattend.xml) that contains the necessary configurations for the installation process.
• Include Windows 10 21H1 Update: Ensure the update is integrated into the Windows installation image.
• Set Up Unattended Installation: Use deployment tools like Windows Assessment and Deployment Kit (ADK) or System Center Configuration Manager (SCCM) to automate the installation.

Here’s a more detailed breakdown:​

• Download and Extract the ISO:
• Obtain the Windows 10 21H1 ISO from the Microsoft website.
• Generate the Answer File:
• Create an Autounattend.xml file that includes configurations like product key, user preferences, disk partitioning, etc.
• Integrate the Update:
• You can use deployment tools like DISM (Deployment Image Servicing and Management Tool) to integrate the Windows 10 21H1 update into the installation source.
• Unattended Installation:
• Run the unattended installation process with your answer file. You can install Windows silently using a bootable USB/DVD or deployment tools like MDT (Microsoft Deployment Toolkit), SCCM, or WDS (Windows Deployment Services).

Additional Tips:​

• Use tools like DISM or third-party software to manage Windows images and apply updates silently.
• Test the unattended installation in a virtual machine or a non-production environment before deploying it widely.
• Ensure all necessary drivers are also integrated for a smooth installation process and to avoid post-installation issues.
  By following these steps, you can create an automated installation process that includes the Windows 10 21H1 update for x64 systems in a silent manner.