How to Create a Tiny Windows 11 25H2 ISO for Minimal Install (No Bloatware)

Windows 11 continues to add more features and built-in apps with every update, but not every user wants a heavy operating system filled with many unnecessary components. If you prefer a lightweight and minimal Windows experience, creating a Tiny Windows 11 25H2 ISO is one of the best solutions.

In this guide, Your System Fixer helps you download Windows 11 25H2 preview files and create a custom Tiny11 ISO using the Tiny11 Builder script. This method allows you to install Windows 11 on unsupported hardware or low-end PC while removing many preinstalled apps and unnecessary features.

TL;DR – Watch the Quick Video Guide

Key Benefits of Using Tiny11

Tiny11 is a lightweight customized version of Windows 11 created using scripts that remove unnecessary apps, services, and components from the operating system.

With Tiny11 Builder, you can create a customized ISO from official Windows installation files. This helps reduce system requirements and improve performance on older PCs:

• Install Windows 11 on unsupported hardware
• Reduce storage usage
• Improve performance on low-end computers
• Remove bloatware and unnecessary apps
• Create a cleaner Windows experience

Tiny 11 25H2 Requirements Before You Start

Before creating the Tiny Windows 11 25H2 ISO, make sure your computer has the following things ready:

• Windows 11 25H2 preview ISO files
• Tiny11 Builder script
• PowerShell with administrator privileges
• At least 20GB of free disk space
• A USB drive (optional for installation)
• Stable network connection

How to Create a Tiny Windows 11 25H2 ISO

The following tutorial will show you where to get the Tiny Windows 11 25H2 builder and create a custom ISO file. Let’s start trying.

Kindly Reminder:
Tiny11 is a customized version of Windows 11 that removes some built-in features and components. While it can improve performance on low-end PCs, certain apps, Windows updates, security features, or system functions may not work properly after installation. For best results, always test Tiny11 in a virtual machine first and avoid using it on mission-critical systems without a full backup.

Step 1: Download and Extract the Tiny11 Builder Script

We will use the open-source Tiny11 Builder script to customize the ISO file. Follow these steps to set up your files:

1. Go to the official Tiny11 Builder repository on GitHub.
2. Download the latest stable release.
3. Right-click the downloaded ZIP file in File Explorer, click the three-dot menu, and select Extract All.

Inside the extracted folder, you will see two main scripts: tiny11maker.cmd and tiny11core_maker.cmd. Here is the difference between them:

• Tiny11 Maker: Removes common bloatware like Clipchamp, News, Weather, and Xbox apps, but keeps Windows Defender and Windows Update.
• Tiny11 Core Maker: Removes almost everything, including Windows Defender and Windows Update. This version is only recommended for testing in virtual machines.

Step 2: Mount the Windows 11 25H2 ISO

Next, you need to mount your downloaded Windows 11 25H2 ISO file so the script can access its data:

1. Find your downloaded Windows 11 25H2 ISO file.
2. Right-click the file and select Mount.
3. Open This PC and note down the new drive letter assigned to the mounted ISO (for example, E: or F:).

Step 3: Enable Script Execution Using PowerShell

By default, Windows blocks third-party scripts from running. You need to change this setting in PowerShell temporarily:

1. Open the Windows search box, type PowerShell, right-click it, and select Run as administrator.
2. In the PowerShell window, paste the following command and press Enter:

Set-ExecutionPolicy Unrestricted

3. Type Y and press Enter to confirm the change. This allows the GitHub script to run on your system.

Step 4: Run the Script and Create the Tiny11 ISO

Now you can run the script to create your custom, lightweight tiny11 ISO:

1. In the administrator PowerShell window, type the full path to your script file and press Enter. In my case, it’s & “C:\Users\JULIANNA\Downloads\tiny11.-.nov24\tiny11builder-main\tiny11maker.ps1”
   C:\Paths\To\Your\Folder\tiny11maker.ps1
2. The script will ask for a drive letter. Type the letter of your mounted ISO (from Step 2) and press Enter.
3. Type 1 for the index number and press Enter to select the Windows edition.
4. The script will now start copying files and stripping out the bloatware. This process usually takes about 30 minutes depending on your hard drive speed.

Step 5: Get Your New Tiny11 ISO File

Once the process is complete, press any key to let the script clean up temporary files. The tool will also generate a system log file that you can open using the Run dialog box if you want to see the details.

Your new Tiny Windows 11 25H2 ISO file is now ready. You can find it right inside the main Tiny11 Builder folder. From here, you can load the ISO into a virtual machine to test it, or use a tool like Rufus to burn it onto a USB drive for a clean installation on your PC.