Popular free free operating systems

Updated March 2023: Stop getting error messages and slow down your system with our optimization tool. Get it now at this link

  1. Download and install the repair tool here.
  2. Let it scan your computer.
  3. The tool will then repair your computer.

Software, secure shells, Kerberos authentication, virtual servers.

You can download FreeBSD here.


March 2023 Update:

You can now prevent PC problems by using this tool, such as protecting you against file loss and malware. Additionally it is a great way to optimize your computer for maximum performance. The program fixes common errors that might occur on Windows systems with ease - no need for hours of troubleshooting when you have the perfect solution at your fingertips:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


OpenSolaris is an operating system developed by Sun Microsystems. It works well on desktops, laptops, servers and data centers. OpenSolaris is based on the graphical interface like Ubuntu and has a rich graphical desktop and a window for easy navigation. It is now available in version 11 and can be downloaded free of charge from the Oracle website.

OpenSolaris Features

      • ZFS (the file system)
      • Bootable clones
      • Data checksum
      • Storage pools (zpools)
      • Snapshots (using the Copy function) on Write)
      • Timers

In addition, Sun’s ZFS file system now features native Solid State Drive (SSD) management technology, enabling system administrators to optimize SSD performance.

You can download OpenSolaris here.


This is a free Windows compatible operating system that offers the advantages of running native Windows applications. In addition to being open source software (its strong point), the tool has a really cool feature that Windows does not offer – an application manager that is very similar to the Linux package manager. To use the software, go to the official React OS website and after downloading the image, use a tool like Rufus to write it on a USB stick.

Haiku OS

What most users like about this operating system is its consistency and coherence. To boot the operating system, simply insert the USB stick into a USB port and reboot. This should not be a problem, as most modern computers today can be configured to boot from the USB stick. The operating system is fast and responsive. It is also preinstalled with a number of applications and demos. Start-up should therefore not pose any problems for new users either.

Fedora & Debian are the other distributions that should be mentioned here.

Also read:

      1. Alternative PC operating systems
      2. Linux alternatives to Windows.

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Expert Tip: This repair tool scans the repositories and replaces corrupt or missing files if none of these methods have worked. It works well in most cases where the problem is due to system corruption. This tool will also optimize your system to maximize performance. It can be downloaded by Clicking Here