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Windows Longhorn Full Version

Windows Longhorn Full Version: A Look Back at the Lost Windows Version

Windows Longhorn was the codename for a major version of Windows that was planned to be the successor of Windows XP and Windows Server 2003. However, due to various technical and developmental issues, the project was eventually scrapped and replaced by Windows Vista and Windows Server 2008. In this article, we will explore the history, features, and legacy of Windows Longhorn, as well as how to download and install some of its leaked builds.

What was Windows Longhorn?

Windows Longhorn was the codename for a version of Windows that was in development from 2001 to 2004. It was intended to be a major update to the Windows NT family, with new features such as a new user interface, a new file system, improved security, and enhanced multimedia capabilities. Some of the goals of Windows Longhorn were to make Windows more reliable, secure, manageable, and user-friendly.

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However, Windows Longhorn faced many challenges and setbacks during its development. The project became too ambitious and complex, resulting in code bloat, instability, and performance issues. The development team also suffered from feature creep, lack of clear vision, and frequent changes in leadership and direction. Moreover, Microsoft had to deal with external pressures such as security threats, antitrust lawsuits, and competition from other operating systems.

In 2004, Microsoft decided to reset the development of Windows Longhorn and start from scratch. The original codebase was abandoned and a new one was based on Windows Server 2003 Service Pack 1. Many of the features that were planned for Windows Longhorn were either dropped, postponed, or redesigned. The new version of Windows was renamed to Windows Vista and was released in 2006. Windows Server 2008 followed in 2008.

What were some of the features of Windows Longhorn?

Windows Longhorn had many features that were either experimental, incomplete, or never made it to the final release. Some of these features include:

  • A new user interface called Aero, which used 3D graphics, transparency effects, animations, and vector icons. Aero also included a sidebar with gadgets, a taskbar with thumbnails, and a search box.

  • A new file system called WinFS, which was based on SQL Server and allowed users to store and query data using metadata and relationships. WinFS also supported synchronization with other devices and online services.

  • A new security model called NGSCB (Next-Generation Secure Computing Base), which used hardware and software components to protect the system from malicious code and unauthorized access. NGSCB also included a feature called Palladium, which enabled secure communication and digital rights management.

  • A new multimedia framework called Avalon, which used XML and .NET to create rich user interfaces and applications. Avalon also supported vector graphics, animations, 3D rendering, media playback, and speech recognition.

  • A new communication framework called Indigo, which used web services and .NET to enable distributed computing and interoperability. Indigo also supported peer-to-peer networking, messaging, transactions, and security.

  • A new shell called Explorer.exe (not to be confused with Internet Explorer), which replaced the traditional desktop and file manager with a more integrated and customizable environment. Explorer.exe also supported virtual folders, stacks, breadcrumbs, previews, filters, and search.

How to download and install Windows Longhorn?

Although Windows Longhorn was never officially released by Microsoft, many of its builds were leaked to the public over the years. These builds vary in stability, functionality, and appearance. Some of them are pre-reset builds that use the original codebase of Windows Longhorn (builds 3683-4094), while others are post-reset builds that use the new codebase of Windows Vista (builds 5000-6002).

If you want to download and install Windows Longhorn on your computer or virtual machine, you can find some of its builds on [The Internet Archive] or [WinWorld]. However, be aware that these builds are not official releases by Microsoft and may contain bugs, errors, or malware. They are also not supported by Microsoft or any other company. Use them at your own risk and discretion.

Before you install Windows Longhorn, you will need to prepare some requirements, such as:

  • A computer or virtual machine that meets the minimum hardware specifications for Windows Longhorn. These may vary depending on the build, but generally, you will need at least a 1 GHz processor, 512 MB of RAM, 15 GB of hard disk space, and a DirectX 9 compatible graphics card.

  • A bootable CD or DVD that contains the ISO image of the Windows Longhorn build you want to install. You can either burn the ISO image to a physical disc or mount it to a virtual drive using software such as [Daemon Tools] or [Virtual CloneDrive].

  • A product key that matches the edition and version of the Windows Longhorn build you want to install. You can either use a generic product key that works for most builds, such as CKY24-Q8QRH-X3KMR-C6BCY-T847Y, or find a specific product key for each build on [BetaWiki] or [The Collection Book].

Once you have everything ready, you can follow these steps to install Windows Longhorn:

  • Insert or mount the Windows Longhorn disc or image and boot from it.

  • Follow the instructions on the screen to choose your language, keyboard layout, and partition settings.

  • Enter the product key when prompted and accept the license agreement.

  • Select the edition and version of Windows Longhorn you want to install and wait for the files to be copied.

  • Restart your computer or virtual machine when asked and complete the setup process by entering your name, password, computer name, and network settings.

  • Enjoy your Windows Longhorn experience!


Windows Longhorn was a promising but ultimately failed version of Windows that never saw the light of day. It had many innovative and ambitious features that were ahead of its time, but also faced many technical and developmental challenges that doomed its fate. However, Windows Longhorn also left a lasting legacy on the Windows family, as some of its features were either incorporated or inspired by later versions of Windows, such as Windows Vista, Windows 7, Windows 8, and Windows 10.

If you are curious about Windows Longhorn and want to try it out for yourself, you can download and install some of its leaked builds from various sources on the internet. However, be careful and cautious when doing so, as these builds are not official releases by Microsoft and may contain bugs, errors, or malware. They are also not supported by Microsoft or any other company. Use them at your own risk and discretion.

We hope you enjoyed this article about Windows Longhorn Full Version. If you have any questions or comments, feel free to leave them below. Thank you for reading!


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