Latest News

29 January, 2018

Q4OS 3.1, Centaurus

read more ...


29 November, 2017

Windows10 loves Q4OS

read more ...


10 October, 2017

Q4OS 2.4, Scorpion

read more ...


Follow us

Live CD

Live media allow users to get a quick Q4OS experience, or try it out on a real hardware without installation. If satisfied, an optional installer is available.


This Long Term Support release codenamed 'Scorpion' gives you five years of security patches and updates, it will be supported until October 2022 at least. The minimal HW requirements for Q4OS is defined as Pentium 300MHz CPU / 128MB RAM / 3GB disk.

Installation CD

If you are looking for pure installation media for personal computers, even for older i386 systems without PAE extension, download the installation CD below.



Installer for Windows

Windows installer puts Q4OS alongside Windows in an easy way, you will not have to modify your existing Windows installation. The installer is Windows 7/8/10 compatible.



Specific hardware - Pinebook, Pine64, Raspberry Pi

Download images below to get a poweful desktop optimized for the Pine64 or Raspberry Pi family hardware.



ARM port

Q4OS for ARM devices runs on wide variety of hardware equipped with 32/64bit ARM processors, including Chromebooks, tablets, single board computers, embedded devices and more.



Software downloads

Get Q4OS applications from this section. Installation is pretty easy, download and save installer, doubleclick it from filemanager and follow setup instructions.

Mozilla Firefox ESR ... Mozilla's web browser, ESR version.
Blueman ... bluetooth manager for laptops with integrated bluetooth device.
Dropbox ... Dropbox.
Skype ... Skype.
Teamviewer ... Teamviewer.
Google Chrome ... Google's web browser.
Chromium ... Chromium web browser.
Chromium ... Chromium web browser, RPI edition.
Libre Office ... professional quality office suite.
Virtualbox Guest Additions ... optimized drivers for those who run inside Virtualbox.


Other downloads

If you are looking for older supported Q4OS releases, you can download from Legacy releases page. For the newest Q4OS testing images, check the dedicated Testing releases page.

Files details

md5sum ; file:
99b0a27bdfedf70b849a41eadc91fa74 q4os-2.4-x64.r6.iso
bbf378ef6887a4e46e89d18616a9b1a8 q4os-2.4-i686pae.r6.iso
0e8e3f60620e79533c14c28127f88ee0 q4os-2.4-x64-instcd.r6.iso
7ff54c3755e63f3760857cb7d87c39a2 q4os-2.4-i386-instcd.r6.iso
b9a1536da3da9b89809d0aa3ff5ef1c3 q4os-2.4-pinebook.r1.zip
5e8b299546233533dfbeeef667964ca1 q4os-2.4-pine64.r1.zip
c3f502d09feae127b4076384996c0f8c q4os-1.8-rpi.r1.zip
3d652605a65512e64045aa48bc90ff82 q4os-winsetup.exe