Linux vs Windows: Which OS Should You Use in 2025?

Linux and Windows are the two most important operating systems in computing. Windows dominates the consumer desktop market (73% market share). Linux dominates servers, cloud, supercomputers, and Android — and is rapidly gaining on the desktop. This guide compares every major dimension so you can choose the right OS for your needs.

At a glance

What is Linux?

Linux is a family of open-source Unix-like operating systems built around the Linux kernel (created by Linus Torvalds in 1991). Rather than a single OS, Linux comes in "distributions" (distros) — curated combinations of the kernel, package manager, desktop environment, and tools.

Popular Linux distros

What is Windows?

Windows is Microsoft's proprietary operating system, first released in 1985. Windows 11 (released 2021) is the current version, requiring a TPM 2.0 chip and UEFI. Windows is the dominant OS for consumer desktops, laptops, and corporate workstations.

Windows editions

Performance

Boot and responsiveness

Linux typically boots faster and uses less RAM at idle, leaving more resources for applications.

# RAM usage at idle (approximate)
Ubuntu 24.04 (GNOME):   ~700 MB
Linux Mint (Cinnamon):  ~500 MB
Windows 11 (default):   ~2.5–3.5 GB
Windows 11 (debloated): ~1.8 GB

CPU and I/O benchmarks

Kernel scheduler differences

Linux uses the Completely Fair Scheduler (CFS) with excellent multi-core utilisation. Windows uses a priority-based pre-emptive scheduler. For server workloads, Linux's scheduler consistently outperforms Windows in multi-threaded scenarios.

Security

Linux security model

Linux was designed from the start as a multi-user system with strict privilege separation:

# Linux: users cannot write to system directories
$ touch /etc/myfile
touch: cannot touch '/etc/myfile': Permission denied

# Elevate only when needed
$ sudo touch /etc/myfile
[sudo] password for user:

Why Linux has less malware

• Smaller desktop market share (less profitable to attack)
• Strict permissions mean most malware can't escalate without sudo
• Open-source code means vulnerabilities are found and patched faster
• No macro-based Office attacks (LibreOffice macros are off by default)

Note: Linux servers are actively targeted. Linux security is not automatic — misconfigurations and exposed services cause breaches.

Software ecosystem

Application availability

Running Windows apps on Linux

# Wine — run Windows executables
wine setup.exe

# Proton (Steam) — automatic for Steam games
# Enable in Steam > Settings > Compatibility

# Bottles — Wine frontend for non-Steam apps
flatpak install flathub com.usebottles.bottles

# CrossOver (paid) — commercial Wine with support

ProtonDB compatibility (as of 2025): ~75% of top 1000 Steam games rated Gold or Platinum on Linux.

Gaming

Linux gaming in 2025

The Steam Deck (running SteamOS/Arch Linux) has legitimised Linux gaming. Valve's Proton compatibility layer translates DirectX calls to Vulkan.

Windows gaming

Windows remains the gold standard for gaming:

• All titles run natively
• Lowest latency via Direct3D
• All anti-cheat systems work
• Xbox ecosystem integration (Game Bar, Game Pass)

Verdict: Windows for competitive gaming or anti-cheat titles. Linux for most single-player and indie games.

Development

Linux is the preferred environment for most professional developers.

Why developers prefer Linux

# Native package management
sudo apt install postgresql redis nodejs python3-venv docker.io

# Versus Windows: install .exe, configure PATH, install WSL, use Chocolatey...

WSL2 — Windows Subsystem for Linux

Windows 11 ships with WSL2, which runs a real Linux kernel in a lightweight Hyper-V VM:

# Install WSL2
wsl --install

# Install Ubuntu
wsl --install -d Ubuntu-24.04

# Run commands
wsl bash -c "sudo apt install postgresql && pg_ctl start"

WSL2 closes the gap significantly, but:

• File I/O between Windows and Linux is slower (cross-filesystem)
• Networking can behave differently
• systemd support is available but limited
• Docker Desktop on Windows uses WSL2 under the hood

Privacy

To disable Windows telemetry:

# Disable telemetry (regedit approach)
Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\DataCollection" `
  -Name "AllowTelemetry" -Value 0

Note: Microsoft re-enables some telemetry during major updates.

Hardware support

Virtualisation and containers

Linux is the foundation of the container ecosystem:

# Docker runs natively on Linux
docker run -d postgres:16

# KVM/QEMU — hardware virtualisation
sudo apt install qemu-kvm virt-manager

# LXC — lightweight OS containers
lxc launch ubuntu:24.04 mycontainer

On Windows, Docker Desktop runs inside WSL2 (a Hyper-V VM), adding overhead. KVM is not available on Windows — you use Hyper-V or VirtualBox instead.

Total cost of ownership

Where Linux wins

Where Windows wins

Learning curve

Full comparison table

Common mistakes

Decision guide

Choose Linux if you:

• Do web development, DevOps, data science, or server administration
• Want a fast, private, free OS with full control
• Are reviving old hardware (pick XFCE or LXQt)
• Work in security research or pentesting
• Want to learn operating systems deeply
• Run servers or containers (nearly mandatory)

Choose Windows if you:

• Play anti-cheat games (Call of Duty, certain multiplayer titles)
• Use Adobe Creative Suite professionally
• Work in a corporate Microsoft environment (Active Directory, SCCM)
• Need CAD software (AutoCAD, SolidWorks, CATIA)
• Produce music with ASIO-dependent DAWs
• Are not willing to spend time learning a new OS

Consider both (dual boot):

• Use Windows for gaming/Adobe, Linux for development
• Modern SSDs make dual-boot practical
• Or use Linux as primary, Windows in a VM for specific apps

FAQ

Is Linux really free? The OS itself is free, and most distros include a complete software suite (LibreOffice, GIMP, etc.) at no cost. Enterprise support contracts (Red Hat Enterprise Linux, Ubuntu Pro) cost money but are optional.

Can I run Microsoft Office on Linux? Not natively. Options: LibreOffice (free, compatible), WPS Office (free for personal), OnlyOffice (free open-source), Office 365 in a browser (full functionality), or running Office via Wine/CrossOver (paid, works well for older versions).

Will Linux slow down my gaming? For most Steam games via Proton, performance is 90–100% of Windows. Anti-cheat titles that don't support Linux are the main exception. The Steam Deck (Linux) demonstrates Linux gaming is viable in 2025.

Is Linux harder to use than Windows? Initially yes — the mental model is different and some tasks require the terminal. Ubuntu and Linux Mint have reduced this gap significantly. Most daily tasks (browsing, email, video, office) work identically to Windows within a week.

Which Linux distro should I start with?

• Complete beginner: Linux Mint (Cinnamon edition) — closest to Windows feel
• Developer / Ubuntu user: Ubuntu 24.04 LTS — largest community, most tutorials
• Privacy focused: Fedora — no proprietary software by default
• Power user: Arch Linux (with archinstall script)

Does Linux work on laptops? Yes — most laptops work well. Check the Linux Hardware Database (linux-hardware.org) or search "[laptop model] Linux" before buying. Dell XPS, Lenovo ThinkPad, System76, and Framework Laptop have excellent Linux support.