WinFixIT is a FREE USB Toolkit and App. It has a: Windows 11 Compatibility Checker, BYPASS Installer and DeBloater. With an Expandable Library of: Installable Apps, extensive, curated Reference Material, Utilities and Software Tools. Build your own FREE copy of the On2it-WinFixIT USB at home.
- Windows 11 Compatibility Checker — works even before Windows is installed
- BYPASS Installer — installs Windows 11 on older hardware, bypassing Microsoft's TPM and Secure Boot requirements where necessary
- Comprehensive DeBloater — over 80 options, each with full plain-English advice, not just a checkbox and a technical name
- Expandable Library — installable apps, curated reference material, utilities and software tools (currently 60 menus, 225 options) — and you can add your own
Why I built it: I spent decades building software. I'd more or less retired — until upgrading to Windows 11 myself left me thoroughly confused by the bloat and the setup screens. I didn't want my students facing the same thing. So, I built WinFixIT, with two AI helpers — Copilot, then Claude — supplying the expertise I didn't have. It's free — please try it, I'd love your feedback.
Connect with me on LinkedIn.
A note on Windows installation media: the two Windows ISOs are not downloaded from us and are not included in this repo at all. The build script fetches your own copy straight from Microsoft's official servers while it runs (using Fido, the same official-download mechanism Rufus itself uses), so FULL Install.iso is the untouched Microsoft image. BYPASS Install.iso is that same official image with the one file Windows Setup uses to enforce its TPM/Secure Boot/RAM checks removed — the same approach Rufus's own "Extended Windows 11 Installation" option uses. You'll still need your own valid Windows license/product key to install and activate either one. If you'd rather supply your own ISOs instead, simply substitute your own FULL Install.iso and BYPASS Install.iso in the Install\Windows folder of the On2it-WinFixIT partition after the build finishes. (Office, Project, and Visio installers are not included in this public build at all — those are licensed specifically to On2it Software Ltd and won't work with anyone else's key anyway.)
See it in action — the Compatibility Checker, BYPASS Installer, DeBloater, and the Library, all walked through.
Read the Quick Preview — opens on its own in your browser's PDF viewer, full width. Real screenshots from the system itself — see what it actually looks like before you download anything.
Read the User Manual — opens on its own in your browser's PDF viewer, full width.
Read the Illustrated Download and Quickstart Guide — opens on its own in your browser's PDF viewer, full width. Screenshots for every step below, plus what to expect once the build itself gets going.
No technical experience needed — every step below is exactly what to click.
- Near the top of this page, click the green
<> Codebutton, then click Download ZIP. - It will download to your Downloads folder as a
.zipfile. Open File Explorer → Downloads, right-click that file, and choose Extract All... → Extract. This creates a new folder with all the files in it. - Open that new folder and find
RUN - Build-Your-USB.bat. - Insert a 32GB or larger USB drive that you're OK with completely erasing.
- Double-click
RUN - Build-Your-USB.bat.- You may see an "Open File - Security Warning" box first, since this was downloaded from the internet. Click Run (or Open) to continue — this is normal for any downloaded program, not a sign anything's wrong.
- You may also see a blue "Windows protected your PC" SmartScreen screen. If so, click More info, then Run anyway.
- A User Account Control box ("do you want to allow this app...") will appear — click Yes. This is expected; the script needs admin rights to partition the USB drive.
- A black window will open and ask you questions — which USB drive to use, and a final "Type YES to continue" confirmation before it erases the drive. Read each prompt and answer it.
- Then it downloads and copies everything — this takes a while (~16GB total), especially on a slower internet connection. Once downloaded, you can reuse that download to build additional USBs from the same PC without waiting again.
- When it says the build is complete, unplug and reinsert the USB drive (or just open it fresh in File Explorer).
- On a PC with Windows already installed: double-click
RUN - On2it-WinFixIT.batto start. This file exists on both partitions of the USB — either one works. - On a PC with no OS installed at all: set your BIOS to boot from the USB drive, and follow the on-screen prompts.
- On a PC with Windows already installed: double-click
To build the USB:
- Windows 10/11
- Administrator rights (requested automatically)
- A USB drive, 32GB or larger, that you're OK with completely erasing
- A stable internet connection for the initial download (~16GB)
What the built USB supports:
- Compatibility Checker and Windows Installer work on any PC — even those without an OS.
- If any version of Windows is already installed, Compatibility Checker can do a somewhat more comprehensive job.
- DeBloater works after Windows 11 has been installed, so it can be used on pre-installed machines.
- This build script is the public counterpart to our internal in-house build tooling — same partitioning and copy logic, just pointed at a public download instead of our internal file server.
Free and open source, under the GNU General Public License v3.0 (GPL-3.0) — use it, share it, modify it, even build on it commercially, as long as anything you distribute (including modified versions) stays licensed under GPL-3.0 too. Full terms: LICENSE.
Support@On2itSoftware.com — comments and suggestions are more than welcome. 😊