Windows Subsystem for Linux, or WSL, runs a Linux environment directly on Windows, so you skip both a separate virtual machine and a dual-boot setup. Version 2.7.14 is a free 247 MB package from Microsoft Corp. and needs Windows 10 or later.
Linux inside Windows, without a second boot
The defining point of WSL is that Linux runs as part of Windows itself. You do not set up a dedicated virtual machine and you do not partition a disk to dual boot. The package ID is Microsoft.WSL, and it needs Windows 10 or later.
The project is listed under operating systems and programming. That fits its audience, which the source description defines as developers who want to use Windows and Linux at the same time.
What a session with WSL looks like
You install the package, which is about 247 MB, and then work with Linux tools next to your normal Windows programs.
The latest changelog shows some of the plumbing. It mentions Plan9 shares hosted as the session user, which relates to how files are shared between the two sides. It also mentions validation of guest capability strings.
WSL compared with Ubuntu, Debian and VirtualBox
The listed alternatives cover different jobs. Ubuntu 24.04 LTS and Debian are Linux distributions, while Oracle VirtualBox is a virtual machine tool, which is the approach WSL aims to make unnecessary. Rufus, balenaEtcher and Ventoy are known for preparing bootable media, so they suit a full separate install rather than a subsystem.
WSL is the lighter route if you want Linux tools without leaving Windows. If you need a complete standalone system, the alternatives fit better.
What's new in 2.7.14
Version 2.7.14 was released on September 11, 2026. It makes sure message structures are zero-initialized, backports additional fixes, hosts Plan9 shares as the session user and validates guest capability strings.
Windows Subsystem for Linux pros and cons
Pros
- Runs Linux on Windows without a separate virtual machine or dual booting
- Free, with an MIT license
- Published by Microsoft Corp. and distributed through github.com
- Works on Windows 10 or later
- Version 2.7.14 changelog lists specific fixes
Cons
- The 247 MB package is large for a single feature
- Interface details are limited, so it is hard to judge the layout before installing
- Not a replacement for a full standalone Linux install
Is Windows Subsystem for Linux safe?
WSL is published by Microsoft Corp. under the MIT license, so its source is open for inspection in the microsoft/WSL repository. Release 2.7.14 is a maintenance update: it makes sure message structures are zero-initialized, hosts Plan9 shares as the session user, and validates guest capability strings.
How to install Windows Subsystem for Linux
- Press the download button to get the official file.
- Run the installer you saved and confirm the Windows security prompt if the publisher matches.
- Follow the setup steps, then start Windows Subsystem for Linux from the Start menu.
