Tiny11 Builder is a PowerShell script that creates a stripped-down Windows 11 ISO by removing bloatware and unnecessary components using official Microsoft utilities. You download the Windows 11 ISO from Microsoft, mount it, run the Tiny11 Maker script in PowerShell, select your edition, and the script outputs a debloated ISO file ready to flash to a USB drive.
Applies to: Windows 11 (23H2, 24H2, 25H2) | Last updated: April 7, 2026
Key Takeaways
- Tiny11 Builder creates a debloated Windows 11 ISO using only official Microsoft utilities — no third-party software baked into the image, making it safer than downloading pre-made ISOs from unknown sources.
- The script removes bloatware and unnecessary components but keeps Windows Security, basic drivers, and core functionality intact. The resulting ISO is around 5 GB and installs with roughly 13 GB of disk usage.
- For an even cleaner approach, consider using UnattendedWinstall with WIMUtil instead — these tools debloat and optimize during installation without modifying the ISO image itself.
- After installing Tiny11, pair it with the Chris Titus Windows Utility or Winhance for further optimization — process count drops to around 70 with an additional ~7 GB of updates.
Quick Steps
- Download the Windows 11 ISO from Microsoft’s official website.
- Download the latest release from the Tiny11 Builder GitHub page and extract it to
C:\. - Open PowerShell as Administrator and run
Set-ExecutionPolicy Unrestricted. - Right-click the Windows 11 ISO and select Mount. Note the drive letter.
- Right-click tiny11maker.ps1 → Run with PowerShell. Enter the drive letter and select edition
6(Pro). - Wait for the script to finish. The debloated ISO appears in the Tiny11 Builder folder (~5 GB).
- Flash the ISO to a USB drive using Rufus or Ventoy and install Windows.
Before You Start: Consider the Alternatives
Tiny11 Builder works well, but since I made the video above, I have built tools that achieve the same goal without modifying the ISO itself:
- UnattendedWinstall — my answer file that debloats and optimizes Windows during installation. Just drop the
autounattend.xmlfile onto the root of your Windows USB drive and install normally. No modified ISO needed. - WIMUtil — my Windows Installation Media Utility that creates a bootable ISO with the latest UnattendedWinstall answer file already included. One tool, one click.
- Winhance — my post-install enhancement utility for deeper optimization, privacy hardening, and Edge removal after you have Windows running.
If you want to try the Tiny11 Builder approach — either because you like how it works or you want a smaller ISO file — the full steps are below.
How to Download and Set Up Tiny11 Builder
Start by downloading the official Windows 11 ISO from Microsoft’s download page. If you need help with this, follow my Windows 11 ISO download guide.
Next, go to the Tiny11 Builder GitHub page by NTDevLabs. Click the Releases tab on the right, download the latest source code ZIP, and extract it. Move the extracted folder to your C:\ drive — I had issues when running it from the Desktop.
Before running the script, you need to allow PowerShell to execute scripts. Open PowerShell as Administrator and run:
Set-ExecutionPolicy UnrestrictedPress A to allow all when prompted. Verify it worked by running:
Get-ExecutionPolicyThe output should read Unrestricted.
How to Create the Debloated Windows 11 ISO
Right-click the Windows 11 ISO file you downloaded and select Mount. If Mount is not available, choose Open with → Windows Explorer. Note the drive letter where the ISO is mounted (for example, E:).
In the Tiny11 Builder folder, right-click tiny11maker.ps1 and select Run with PowerShell. Accept any prompts by typing R and pressing Enter. When asked for the drive letter, enter just the letter (e.g., E) without a colon.
The script will ask you to select a Windows edition by image index. Type 6 for Windows 11 Pro and press Enter. The available editions and their index numbers are displayed in the terminal.
The script will now remove bloatware components and build the new ISO. This takes several minutes depending on your hardware. If the process appears stuck, click inside the PowerShell window and press Enter — this is a known quirk.
Once complete, you will see a “Creation is complete” message. The debloated ISO file appears in the Tiny11 Builder folder as a disk image file, roughly 5 GB in size.
How to Install and Set Up Tiny11
Flash the debloated ISO to a USB drive using Rufus or Ventoy, then boot from it. The installation process is the same as a normal Windows 11 install — for a step-by-step walkthrough, see my Windows installation guide.
During installation, select World as your region to minimize additional bloat being installed. Disconnect from the internet before starting — this prevents Windows from auto-downloading updates during setup. You can change the region back to your actual location after installation.
During the out-of-box experience (OOBE), click I don’t have internet → Continue with limited setup to create a local account. Turn off all privacy setting sliders on the privacy screen.
Tip: Keep Windows Security enabled — the normal Tiny11 build preserves it intentionally. Only the core version removes it, and I do not recommend disabling it for most users.
What to Expect After Installing Tiny11
On the fresh Tiny11 desktop, the installation uses roughly 13 GB of disk space — significantly less than a standard Windows 11 install. The Start menu is clean with no bloatware apps, and Microsoft Edge is not installed. OneDrive is still present in startup but can be disabled manually.
Some privacy settings are not disabled by default, which was disappointing. The diagnostics and feedback settings are hard-disabled, but the general privacy toggles under Settings → Privacy & Security → General still need to be turned off manually. Activity history is also left enabled.
After connecting to the internet and installing security updates, disk usage grows to around 20 GB — still well below a standard Windows 11 installation. I recommend using the Chris Titus Windows Utility after install to set Windows Update to security-only mode and apply recommended desktop tweaks. This brought my process count down to around 70, which is excellent.
For ongoing optimization and deeper privacy hardening, Winhance handles the remaining privacy toggles, removes Edge if it gets reinstalled through updates, and applies registry-level tweaks that neither Tiny11 nor the Chris Titus Utility cover.
Frequently Asked Questions
Is Tiny11 Builder safe to use?
Yes. Tiny11 Builder uses only official Microsoft utilities (DISM and oscdimg) to modify the ISO. The script is open source and available on GitHub, so you can review every change it makes before running it. This is significantly safer than downloading pre-made ISOs from unknown sources, which could contain malware.
What is the difference between Tiny11 Builder and UnattendedWinstall?
Tiny11 Builder modifies the ISO image itself by removing components before installation. UnattendedWinstall uses a Microsoft answer file (autounattend.xml) that debloats and configures Windows during the installation process without touching the ISO. UnattendedWinstall is my preferred approach because it works with the unmodified official ISO and is easier to keep updated.
Does Tiny11 remove Windows Security?
The standard Tiny11 Builder script keeps Windows Security (Windows Defender) intact. The “core” version removes it for an even smaller footprint, but I do not recommend using the core version for most people. Keeping Windows Security enabled is important for basic protection.
Can I use Tiny11 Builder with any Windows 11 ISO?
Yes. Tiny11 Builder works with any official Windows 11 ISO from Microsoft, including 23H2, 24H2, and 25H2. Always use the latest ISO available for the best compatibility and security patches.
What should I do after installing Tiny11?
Connect to the internet and install security updates. Then run the Chris Titus Windows Utility to apply recommended tweaks and set updates to security-only mode. For ongoing optimization, install Winhance to handle the remaining privacy settings and any bloat that returns through updates. Use Snappy Driver Installer Origin to install any missing drivers.
Thank you for this.