Custom Windows 11 builder axes Microsoft's AI features, whack-a-moling Copilot, Outlook, and Teams — new Tiny11 Builder release should be Windows 11 25H2 ready

(Image credit: NTDEV)

Windows bloat hater NTDEV has released an updated version of Tiny11 Builder, a tool which facilitates the creation of minimal and decluttered Windows 11 installs. The headlining changes presented here are the tool's ability to remove Copilot, the new Outlook client, and Teams. But there’s much more. NTDEV says that Tiny11 Builder is now ready for Windows 11 25H2, despite Microsoft’s whack-a-mole attempts to push unwanted apps onto your storage.

It's been quite a while (and for that I deeply apologize), but the new release of tiny11 builder is finally here!simplifying the process a bit while also tackling apps like Copilot, the new Outlook and Teams (they're like whack-a-mole!). It also makes the entire image smaller! pic.twitter.com/RL2bAO4ypCSeptember 5, 2025

The latest release of Tiny11 Builder is claimed to be compatible with “all Windows 11 SKUs, all languages (at least in theory), for both x64 and arm64.” Moreover, it has been tested on the latest Windows 11 24H2, 25H2, as well as Canary Build 27934 releases.

The developer notes that, as well as the new features mentioned, this latest release fixes a few bugs, and promises updated script generated disk images will be “much smaller.” It is explained that the space-saving is largely due to the use of Microsoft’s LZMS compression.

Swipe to scroll horizontally

Bloat removed via the standard Tiny11 Builder script:
Clipchamp News Weather Xbox app GetHelp GetStarted Office Hub Solitaire	PeopleApp PowerAutomate ToDo Alarms Mail and Calendar Feedback Hub Maps Sound Recorder	Your Phone Media Player QuickAssist Tablet PC Math Edge OneDrive Copilot New Outlook Client

If you are interested in the goings-on behind the scenes of this tool, we recommend that you visit the Tiny11 Builder GitHub page. There it is explained that this tool is simply a PowerShell script dubbed tiny11maker.ps1. When executed, the script will pare down a fresh official Windows ISO which can be grabbed directly from Microsoft.

There is just one executable required, if you wish to sidestep the Windows 11 system requirements. In such a case, you will use oscdimg.exe, which is provided in the Windows ADK, and is used to create bootable ISO images.

Last but not least, an “unattended answer file” is included in the distribution, so that users can enjoy a zero-friction bypass of the Microsoft Account OOBE.

Core, if you dare

There’s also a more powerful ‘Tiny11 core Builder’ being made available alongside this new release. But please be aware that this core release is flagged as being “for testing purposes only,” and “a quick and dirty development testbed.” The core release can make Windows 11 images much smaller, it is claimed, but sacrifices some serviceability features.

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Mark Tyson is a news editor at Tom's Hardware. He enjoys covering the full breadth of PC tech; from business and semiconductor design to products approaching the edge of reason.

7 Comments Comment from the forums

SomeoneElse23

This is not a new idea.

Check out windows ameliorate.
https://amelabs.net/
Reply
Alvar "Miles" Udell

Your Phone (now called Phone Link) is genuinely useful for Android users, especially Samsung users as they can mirror the screen. Edge, as much as some people love to hate it, is also genuinely useful as, among other things, a backup browser for when things won't load right in your primary browser. OneDrive, while not as easily accessible as Google Drive though This PC, is 5GB of free cloud storage and a great way to keep a secure, encrypted version copy of certain files via OneDrive Vault, as well as just being able to keep things off another service you'd rather not commingle (work vs personal, for example).

Think most, if not all, of the rest is either uninstallable via a couple of clicks or is deprecated and will no longer be distributed (like Maps, removed in July), though Phone Link and OneDrive are easily removed as well. Not something I'd say requires a third party tool to do unless you're setting up dozens of systems, and nothing for anyone to worry about unless they're using something like a 128GB SSD from 2010.

But you know me, if something isn't actively using measurable system resources and just negligible (in 2025) storage, it's not "bloat", not when things like Steam just sitting in the system tray uses near a gig of RAM and quite a bit of CPU (0.3-0.5% of a 16C/32T CPU).
Reply
scottslayer

So how is this debloat tool better than others?
This "article" read as a borderline marketing post.

Alvar Miles Udell said:
But you know me, if something isn't actively using measurable system resources and just negligible (in 2025) storage, it's not "bloat", not when things like Steam just sitting in the system tray uses near a gig of RAM and quite a bit of CPU (0.3-0.5% of a 16C/32T CPU).
My Steam is currently using 426.1 megabytes of RAM and 0.1% cpu at idle, either restart your computer or reinstall Steam.
Reply
snemarch

Alvar Miles Udell said:
OneDrive, while not as easily accessible as Google Drive though This PC, is 5GB of free cloud storage and a great way to keep a secure, encrypted version copy of certain files via OneDrive Vault,
Yeaaaaah, no thanks. Microsoft is trying reaaaaaally hard to push you to get your documents uploaded to their cloud.

Alvar Miles Udell said:
But you know me, if something isn't actively using measurable system resources and just negligible (in 2025) storage, it's not "bloat", not when things like Steam just sitting in the system tray uses near a gig of RAM and quite a bit of CPU (0.3-0.5% of a 16C/32T CPU).
For me, it's a bit less about the disk/memory/cpu wasted, and a lot more about getting unwanted crap, adware and spyware shoveled down our throats. It's great not having to uninstall useless crap after OS install, and getting rid of useless, invasive crap like copilot is a requirement for using Windows at all, IMHO.

scottslayer said:
So how is this debloat tool better than others?
This "article" read as a borderline marketing post.
It's a nice, free and open-source tool. It builds a slimmed-down install ISO rather than trying to clean up your system post-install.
Reply
ezst036

Such a massive amount of effort is constantly expended trying to get around what Microsoft does to abuse its users.
Reply
Ogotai

Alvar Miles Udell said:
not when things like Steam just sitting in the system tray uses near a gig of RAM and quite a bit of CPU (0.3-0.5% of a 16C/32T CPU).
my steam install, uses zero ram, and none of my cpu, as i have it set, not to load when i start windows.. same for GOG, and EAs version of steam.. ..

that problem is solved :-)
Reply
EzzyB

Alvar Miles Udell said:
Your Phone (now called Phone Link) is genuinely useful for Android users, especially Samsung users as they can mirror the screen. Edge, as much as some people love to hate it, is also genuinely useful as, among other things, a backup browser for when things won't load right in your primary browser. OneDrive, while not as easily accessible as Google Drive though This PC, is 5GB of free cloud storage and a great way to keep a secure, encrypted version copy of certain files via OneDrive Vault, as well as just being able to keep things off another service you'd rather not commingle (work vs personal, for example).

Think most, if not all, of the rest is either uninstallable via a couple of clicks or is deprecated and will no longer be distributed (like Maps, removed in July), though Phone Link and OneDrive are easily removed as well. Not something I'd say requires a third party tool to do unless you're setting up dozens of systems, and nothing for anyone to worry about unless they're using something like a 128GB SSD from 2010.

But you know me, if something isn't actively using measurable system resources and just negligible (in 2025) storage, it's not "bloat", not when things like Steam just sitting in the system tray uses near a gig of RAM and quite a bit of CPU (0.3-0.5% of a 16C/32T CPU).
I agree with Phone Link. I've grown quite fond of it over the years. The ability to receive text messages while you are working and sending off a quick reply without taking your hands off an actual, real, keyboard is something I'd definitely miss after using it so long now.
Reply

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