How to Replace Windows with Linux on Your Computer

What happens when you install Linux instead of Windows

When you replace Windows with Linux, you are removing the Windows operating system from your computer and installing Linux in its place. Linux is a free operating system that works on the same hardware as Windows — your existing hard drive, processor, and memory will function with it. After installation, your computer will boot into Linux instead of Windows, and you will use Linux programs instead of Microsoft Office, Internet Explorer, or other Windows software.

The process involves creating installation media (usually a USB drive), backing up any files you want to keep, wiping the hard drive or partition where Windows lives, and then running the Linux installer. Most of the work is preparation and decision-making, not technical complexity. However, some programs you rely on may not have Linux versions, and some hardware (printers, graphics cards, older scanners) may not work as smoothly on Linux as they do on Windows.

Key Takeaways

Linux is a free operating system that replaces Windows entirely, so you will lose access to Windows programs unless they have Linux versions or you use compatibility tools.
You must back up all files you want to keep before installation, because the process will erase your hard drive or the partition where Windows is installed.
Popular Linux distributions for beginners include Ubuntu, Linux Mint, and Fedora, each with different looks and philosophies but similar installation steps.
Some hardware like printers and graphics cards may require extra setup or may not work at all on Linux, so check compatibility before you commit.
Installation takes 20 to 60 minutes on most computers, but planning and backing up your files takes longer.

Decide whether Linux is right for your needs

Before you install Linux, think about what you actually use your computer for. If you spend most of your time in a web browser, using email, and writing documents, Linux will work fine — Firefox, Chrome, and LibreOffice (a free alternative to Microsoft Office) all run on Linux. If you rely on specific Windows programs like Adobe Creative Suite, specialized accounting software, or games that only run on Windows, you will lose access to them.

Check whether the programs you use most have Linux versions. Visit the official website of each program and look for a Linux read, or search "[program name] Linux version" to see if it exists. Some programs run on Linux through Wine (a compatibility layer that lets you run some Windows programs on Linux) or Proton (for games), but this is not may provide to work and adds complexity. If you cannot live without Windows-only software, dual-booting (keeping both Windows and Linux on the same computer) may be a better choice than replacing Windows entirely.

Back up all your files before you start

Installing Linux will erase the hard drive or partition where Windows is installed. Any files stored there will be gone. Before you touch anything, copy every file you want to keep to an external hard drive, USB drive, or cloud storage. This includes documents, photos, videos, downloads, and anything in your Desktop or Documents folders.

Do not skip this step. Once the installer starts, there is no undo button. If you have a lot of files, use an external hard drive rather than a USB stick — it will be faster and more reliable. Test that your backup actually works by opening a few files from the backup location on another computer before you proceed with installation.

Choose a Linux distribution and create installation media

A Linux distribution is a packaged version of Linux with a specific look, set of tools, and philosophy. Ubuntu, Linux Mint, Fedora, and Debian are the most common for people replacing Windows. Ubuntu is the most popular and has the most online help available. Linux Mint is designed to feel familiar to Windows users. Fedora is newer and more cutting-edge. Debian is stable and minimal. For a first replacement, Ubuntu or Linux Mint are the safest choices.

read the installation file (called an ISO file) from the official website of your chosen distribution. Then use a tool like Balena Etcher (free, works on Windows, Mac, and Linux) or Rufus (free, Windows only) to write that ISO file to a USB drive. This creates bootable installation media — a USB drive that your computer can start up from and use to install Linux. The process takes 5 to 15 minutes depending on your internet speed and USB drive.

Boot from the USB drive and run the installer

Insert the USB drive into your computer and restart it. As it starts up, watch for a message that says "Press [key] to enter boot menu" or "Press [key] to choose boot device" — the key varies by computer manufacturer (often F12, F2, Esc, or Del). Press that key and select the USB drive from the menu. Your computer will then boot from the USB and show you the Linux installer.

The installer will walk you through a series of screens asking where to install Linux, what language you want, and what your username and password should be. When it asks where to install, you will see your hard drive listed. If you are replacing Windows entirely, select the whole drive or the partition where Windows is installed. The installer will warn you that this will erase everything on that drive — this is normal and expected. Proceed, and the installer will format the drive and copy Linux files to it. This takes 10 to 30 minutes depending on your computer speed.

Complete setup and install additional software

When the installer finishes, it will ask you to remove the USB drive and restart. Do that, and your computer will boot into Linux for the first time. You will see a login screen — enter the username and password you created during installation. After you log in, you will see the desktop and a menu or process launcher.

Linux distributions come with basic software pre-installed: a web browser, a file manager, a text editor, and sometimes an office suite. To install additional programs, use the Software Manager or App Store that came with your distribution — it works like a phone app store. Search for what you need, click Install, and the program downloads and installs automatically. Most common programs (Firefox, GIMP for image editing, VLC for video) are free and available in these stores. You can also install programs from the command line using a package manager, but the graphical store is easier for beginners.

Troubleshoot hardware and driver issues

Most hardware works automatically on Linux — your keyboard, mouse, monitor, and network card usually function without any extra setup. However, some devices need drivers (software that tells Linux how to talk to the hardware). Printers, graphics cards, and Wi-Fi adapters sometimes fall into this category.

If a device does not work, check the manufacturer's website for Linux drivers. Some manufacturers provide them; others do not. If no official driver exists, search online for "[device name] Linux" to see if other users have found a solution. Graphics card drivers (from Nvidia or AMD) often need to be installed manually, and Linux distributions usually provide a tool to help you do this — look in your system settings under "Drivers" or "Additional Drivers." If a device straightforward does not work on Linux and you need it, you may need to return to Windows or use a different device.

Frequently Asked Questions

Can I go back to Windows after I install Linux?

Yes, but only if you still have your Windows installation media and product key. You would need to boot from Windows installation media and reinstall Windows, which will erase Linux. This is why backing up your files before installing Linux is critical — you cannot recover Windows files after Linux is installed unless you have a backup.

Will my printer work on Linux?

Many printers work automatically on Linux without any driver installation. To find out, plug in your printer and go to Settings or System Settings, then look for Printers. If your printer appears and prints a test page, you are done. If it does not appear, visit the printer manufacturer's website and search for Linux drivers. Some older or specialized printers have no Linux support.

What if I need to use a Windows program after I install Linux?

You have a few options. You can use Wine or Proton to run some Windows programs on Linux, though this is not reliable for all software. You can use a virtual machine (software that runs Windows inside Linux) if you have enough disk space and memory. Or you can dual-boot, keeping both Windows and Linux on the same computer and choosing which one to use when you start up. Dual-booting is more complex to set up but gives you full access to both systems.

How much disk space does Linux need?

Linux itself takes 5 to 15 gigabytes depending on the distribution and what you install. You should have at least 50 gigabytes free if you plan to install programs and store files. Most modern computers have enough space, but if your hard drive is nearly full, you may need to clean it up or upgrade to a larger drive before installing.

Do I need to pay for Linux?

No. Linux and most programs available for Linux are free. You do not need a product key, and there are no licensing fees. The only costs are your time to install it and potentially new hardware if something does not work and you need to replace it.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.