Want to install Windows 11 and Microsoft Office 2021 in a single step? Creating a custom ISO that includes both can streamline your setup process, ideal for IT deployments, new PCs, or mass installations.

This guide explains how to build a Windows 11 with Office 2021 ISO using trusted tools and methods, ensuring a faster, cleaner, and more consistent installation experience.

Why Use a Windows 11 + Office 2021 ISO?

Combining Windows 11 and Office 2021 into one installation ISO provides several advantages:

  • ✅ One-time setup for OS and Office

  • ✅ Saves installation time

  • ✅ Reduces post-install configuration

  • ✅ Ideal for IT admins, businesses, and bulk device setup

  • ✅ Ensures consistency across multiple machines

Requirements to Get Started

Before you begin, gather the following:

  • ✅ Windows 11 ISO file (from Microsoft)

  • ✅ Office 2021 installation files (via Office Deployment Tool)

  • ✅ A tool to extract files (e.g., 7-Zip, WinRAR)

  • ✅ Integration tool (e.g., NTLite or DISM)

  • ✅ Sufficient storage and a test environment (like a VM)

Step-by-Step: Create a Windows 11 with Office 2021 ISO

Step 1: Download Office 2021 Installer

  • Use the Office Deployment Tool to download official Office 2021 files.

  • Avoid third-party sources to prevent license or malware issues.

Step 2: Extract Office Files

  • Use 7-Zip or WinRAR to extract the contents into a folder named Office2021.

Step 3: Mount or Extract Windows 11 ISO

  • Use a virtual drive or extraction tool to access the ISO content.

Step 4: Add Office Files to Windows ISO

  • Navigate to the sources folder in the Windows 11 ISO.

  • Create a new folder named Office2021 and copy Office files into it.

Step 5: Integrate with NTLite or DISM

  • Open NTLite or run DISM.

  • Import the Windows ISO.

  • Add the Office2021 folder in the Post-Setup or Silent Installers section.

  • Rebuild the ISO to create a custom Windows 11 + Office 2021 ISO.

Step 6: Test the Custom ISO

  • Use VMware, VirtualBox, or Hyper-V to test:

    • Windows 11 installation

    • Office 2021 auto-install or availability

Step 7: Deploy the ISO

  • Use the tested ISO to install Windows 11 and Office 2021 together on:

    • New PCs

    • Enterprise deployments

    • Student labs or bulk systems

Best Practices for Integration

  • ✅ Always use genuine Microsoft sources

  • ✅ Label your custom ISO clearly (e.g., Win11_Office2021.iso)

  • ✅ Maintain backups of both original and modified ISOs

  • ✅ Update the ISO periodically with the latest Office/Windows builds

Key Considerations

  • This process does not activate Office or Windows. You still need valid license keys.

  • This guide is ideal for creating a Windows 11 with MS Office ISO download for personal or organizational use.

Simplify Your Setup with Windows 11 + Office 2021 ISO

Building a custom ISO with Windows 11 and Office 2021 is a powerful solution for efficient PC setup. It saves time, ensures consistency, and reduces manual effort — especially for IT admins and enterprise users.

FAQs

✅ Does Microsoft Office 2021 work on Windows 11?

Yes, Office 2021 is fully compatible with Windows 11. It installs and runs smoothly on all editions, including Home and Pro.

✅ How to install Office from an ISO file?

  1. Mount the Office ISO using a virtual drive tool

  2. Run setup.exe or use the Office Deployment Tool

  3. Follow the on-screen prompts to install

  4. Activate using a valid Office 2021 key

Tip: This method is ideal for offline installations or multiple deployments.

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