This is a modified version of Windows 8.1 Embedded Industry Pro. I call it "Windows 9"
It was designed to bring back the UI from Windows 7, while keeping the kernel improvements from 8.1
You need a license key to activate this operating system.
If you are in college, check if you have a Microsoft Imagine subscription. You can usually get an 8.1 Embedded Industry Pro license key from Microsoft Imagine for free.
Windows 9 is x64 only - this will not work on 32 bit systems.
If affected by a black screen issue after windows update, please visit this page for instructions on how to repair.
Screenshot of the system:

Is there a specific appearing when you try to open it?
: It is an MP4 file, which is a universal container for both video and audio data. 1_5112056064962986687.mp4
💡 : If you are trying to find where this video originally came from, check the "Date Created" in the file properties. This usually matches the day you received the message or downloaded the clip. To help you better, could you tell me: Did you download this from a specific app? Are you trying to edit it or just play it? Is there a specific appearing when you try to open it
: Files named with long numeric strings (like 1_511... ) are usually cached media from social media platforms or automated backups. 🛠️ How to open or manage it This usually matches the day you received the
: If you need this "piece" in a different format (like a GIF or MP3), you can use an online converter .
: If you found this in a hidden folder and it won't play, it might be an incomplete download. You can try using repair tools if the file is corrupted.
Installation:
1. Download the file using the download link above.
2. Extact the .7z file with 7-Zip
3. Use the included tool to copy the iso onto a USB flash drive that is larger than 4gb
4. Boot to the flash drive
5. Follow onscreen instructions to Install Windows.
Legal:
This image is provided with no license key, therefore it is not an illegal source of windows. Users must provide their own license key for activation.
All pre-installed software/tweaks belong to the companies/people who made it.
Windows 9 might be a registered trademark of Microsoft Corporation, I do not own the term "Windows 9".
Please don't sue me, thanks.
Hi /r/PCMasterRace :)
Hello LinusTechTips :)