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Free Windows 10 Alternatives for Windows

There are many alternatives to Windows 10 for Windows if you are looking for a replacement. The best free Windows alternative is Debian, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Windows 10 and ten of them are free and available for Windows so hopefully you can find a suitable replacement. Other interesting free Windows alternatives to Windows 10 are ReactOS, Kali Linux, illumos and Windowsfx OS.

Windows 10 alternatives are mainly Operating Systems but may also be Linux Distros. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Windows 10.
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  • Windows

Windows 10 is a personal computer operating system released by Microsoft as part of the Windows NT family of operating...

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  1. Debian icon

    Debian

    • FreeOpen Source
    • Windows
    • Linux
    • Windows S
    • BSD
    • Self-Hosted

    The Debian Project is an association of individuals who have made common cause to create a free operating system. This operating system that we have created is called Debian.

    Debian 9 gnome.
    Debian vs Windows 10 opinions
    Most users think Debian is a great alternative to Windows 10.

    Debian is one of the most stable operating systems ever built, and it supports alot of software

    Top positive comment   ago
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    12

    No SPYWARE- Not COLLECTING personal data. And not WORKING with their fellow NSA and CIA for the world domination of the internet. Open Source will eventually prevail, and GAFAMs will fail.

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    7

    Debian is a not so good alternative for those who cares about updates. We know that to maintain the stability, the distribution (at least his stable branch) doesn't have the latest updates firstly. This way, some users won't feel truly fulfilled by the distribution.

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    13

    it's not functional without user coding

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    -6

    i have linux mint 19.2 cinnamon and i find it very easy to operate windows always change desktop also my wife woke up to use her computer with windows 10 when she turned on it was completely wiped out her browser was not there all icons etc.

    Positive comment ago
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    0
    OKTAYMERCAN

    Like a vanilla linux os and most large packe library. also you can run windows games and other programs on linux.

    Positive comment ago
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    5
    vazirified

    You can do whatever you did on Windows, plus much more, plus freedom in every aspect!

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    2
  2. ReactOS™ is an Open Source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft® Windows™ NT family of operating systems (NT4, 2000, XP, 2003, Vista, Seven).

    Screenshot
    ReactOS vs Windows 10 opinions
    Most users think ReactOS is a great alternative to Windows 10.
    petertrypsteen

    Application and driver compatibility.

    Top positive comment   ago
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    5

    Because ReactOS is competible with Windows 10 drivers and programs.

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    3

    This is effectively a clone of Windows XP, and while it runs some software, it can not run most programs. It runs poorly on real hardware.

    Top negative comment   ago
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    0
    Papel

    This is meant to be an "open source windows". Despite being in alpha, it works and you can still use all your .exes and installers, so no need to worry about having to abandon all your "windows only" programs.

    Positive comment ago
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    1

    It's not linux. rather, it's legacy comes from being an alternative beast of it's own! It works well with existing windows applications; keep in mind that it is still actively being developed, so things are being improved over time.

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    9
    lounes-tb

    ReactOS is an opensource reimplementation of the NT api (ms windows) with a lot of inovative ideas like the package manager and the BTRFS support.

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    7


  3. Kali Linux icon

    Kali Linux

    • FreeOpen Source
    • Windows
    • Linux
    • Windows S

    Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing, originally forked from Backtrack Linux by the Offensive Security team.

    Screenshot
  4. illumos icon

    illumos

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    illumos is a free and open-source Unix operating system. It derives from OpenSolaris, which in turn derives from SVR4 UNIX and Berkeley Software Distribution (BSD). illumos comprises a kernel, device drivers, system libraries, and utility software for system administration.

    No screenshots yet
  5. Windowsfx OS icon

    Windowsfx OS

    • FreeOpen Source
    • Windows
    • Linux
    • Android
    • Android Tablet
    • ONLYOFFICE
    • Android SDK
    • Microsoft Office Outlook

    The Windowsfx architecture is based on Ubuntu LTS. Windowsfx tries to take advantage of all the legacy Microsoft Windows user experience so that the learning curve on Linux is minimal.

    No screenshots yet


  6. Umbrel icon

    Umbrel

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • Ubuntu
    • Debian
    • Raspberry Pi

    A beautiful personal server OS for self-hosting for any Linux distro.

    Dashboard
  7. AtlasOS icon

    AtlasOS

    • FreeOpen Source
    • Windows

    AtlasOS is a 20H2 version of Windows which comes pre-tweaked with optimizations for FPS & latency.

    Screenshot
  8. Server Wala icon

    Server Wala

    • FreemiumProprietary
    • Windows
    • Linux
    • Software as a Service (SaaS)

    Dedicated servers, private and public clouds, virtual private servers, award-winning infrastructure virtualization, IP transit, and fanatical support help us to provide every customer with the platform that meets their every demand constantly.

    Dedicated Server | SSD Cloud Server
  9. BITS-PyOS icon

    BITS-PyOS

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Chrome OS

    BIOS-Implementation-Test-Suite-Based Python Operating System.

    Main Menu
  10. DAMS OS icon

    DAMS OS

    • FreeProprietary
    • Mac
    • Windows
    • Linux

    A Small Debian-based Live OS.

    Discontinued

    Developed stopped in 2013. Last version, 2.0.1s32, released in September 2012, can be still downloaded from SourceForge.

    Play
Showing 10 of 10 alternatives