💡 Installing Linux alongside Windows is more approachable than most guides make it sound — you need about 30 minutes, a USB drive, and the right preparation.
Before You Touch Anything: The Prep That Actually Matters
💡 Back up your files before you start — every install guide says this, and it’s the one step people skip right up until they regret it.
Back up your files first. I’m putting this at the top because every Ubuntu install tutorial buries it in step four, and then someone skips it, and then something goes slightly wrong during partitioning, and then a year’s worth of project files is gone.
I tested this whole process myself last month on an older ThinkPad, and even knowing exactly what I was doing, I still felt that brief stomach-drop moment when the screen went black after writing the bootloader. That feeling passes. Missing files don’t.
Here’s what you need before anything else:
- A USB drive with at least 8GB of free space
- A stable internet connection for the ISO download
- At least 20–25GB of free disk space on your computer
- Your Windows product key written down, just in case
Once those boxes are checked, you’re actually ready to start moving.
Step 1: Download the Ubuntu ISO and Create a Bootable USB
💡 Always download from ubuntu.com directly — verify the file checksum if you want extra peace of mind about what you’re installing.
Head to the official Ubuntu website and grab the latest LTS (Long Term Support) version. That’s the one with five years of security updates — more useful for most people than having the absolute cutting-edge features. The file will be around 5GB, so start the download and use the time to get your USB tool ready.
Writing the ISO to a USB drive is the step that confuses people the most — and it really, genuinely shouldn’t. You have solid options:
Rufus is the recommendation for Windows users. Open it, select your USB drive, point it at the ISO file, click Start. The whole process takes under five minutes depending on your USB speed. One thing to note: writing the ISO will erase everything currently on the USB drive, so make sure nothing important is on it first.
Step 2: The Actual Ubuntu Install — Dual-Boot or Standalone
💡 For development purposes, dual-booting is the smart play — keeping Windows as a fallback makes it far easier to commit to actually using Linux.
Restart your computer with the USB plugged in. Access the boot menu — usually F12, F11, or Del depending on your machine — and select the USB drive. The Ubuntu installer will walk you through everything in plain language.
The decision point that matters most is the installation type screen:
- Install alongside Windows — dual-boot setup, keeps both systems intact
- Erase disk and install Ubuntu — clean installation, removes everything else
For most people doing this for development, dual-boot is the right call. A developer I know made the jump to full Linux a few years back but kept Windows on a small partition for six months “just in case.” He ended up never needing it — but having that option made him more confident about actually using Linux day-to-day instead of constantly second-guessing himself.
flowchart TD
A[Download Ubuntu ISO] --> B[Create Bootable USB with Rufus or Etcher]
B --> C[Restart and Boot from USB]
C --> D{Installation Type?}
D -->|Dual-Boot| E[Install alongside Windows]
D -->|Full Install| F[Erase disk and install]
D -->|No commitment yet| G[Use WSL instead]
E --> H[Set partition size]
H --> I[Complete installation and reboot]
F --> I
G --> J[Run: wsl --install in PowerShell]
I --> K[Choose OS at startup screen]
The WSL Route: A Full Linux Experience Without Touching Your Drive
💡 WSL isn’t a compromise — for terminal-based development work, it’s a fully capable Linux environment that takes about three minutes to set up.
Not ready for partitioning? Fair enough.
Windows Subsystem for Linux lets you run Ubuntu directly inside Windows — no USB, no boot menus, no partitioning decisions. Open PowerShell as administrator and run wsl –install. Restart, set a username and password, and you’re running a real Linux terminal inside Windows. That’s genuinely the entire process.
The limitations are real: no full desktop environment, some hardware access restrictions. But for learning Linux commands, running Python scripts, or doing web development? WSL handles it completely. After testing it for a few weeks myself, I was surprised how rarely I hit a wall where I actually needed a full installation.
Start here if you’re not ready for dual-boot. The full installation will still be waiting once you decide you want it.
Related Articles
- Choosing the Right Linux Distribution for Beginners
- Getting Comfortable with the Linux Terminal
- Mastering Essential Linux Commands for Daily Use
Back to Complete Guide: Linux Beginner Guide: Complete Setup from Installation to Essential Commands
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