A real Linux kernel and userland running alongside Windows — architecture, integration, and daily use.
Commands that worked fine yesterday suddenly fail with permission errors after a WSL or Windows update. Here's how to work through the specific, common causes rather than reflexively reaching for chmod 777.
When Windows 11 shipped on October 5, 2021, Linux compatibility via WSL2 was no longer an optional add-on developers had to know to seek out — it was part of the platform's story from day one.
A Linux GUI application launches under WSLg but renders as a blank window, crashes immediately, or displays visual corruption. Here's how to work through WSLg's specific rendering stack to find the actual cause.
WSL2's lightweight VM claims memory dynamically as Linux processes need it — but historically gave that memory back to Windows only reluctantly. Here's what's actually happening, and what you control via .wslconfig.
For years, setting up WSL meant enabling Windows features manually, downloading a kernel update package separately, and installing a distro as separate steps. The wsl --install command collapsed all of it into one line.
A distro that hangs indefinitely on first launch, or refuses to start on a machine that's run WSL fine before, usually traces back to one of a handful of specific, diagnosable causes.
Running notepad.exe from a Bash prompt, or a Linux tool from Windows' own command line, works because of a specific interop layer translating between two completely different executable formats and process models.
Announced at Build 2020 and released to Windows Insiders the following spring, WSLg let a Linux graphical application's window appear on the Windows desktop like any native app — no separate remote desktop session required.
A project that runs fine natively feels sluggish the moment it's accessed from /mnt/c inside WSL2 — especially anything touching large numbers of small files. Here's why, and the actual fix.
Running a Linux GUI application inside WSL and having its window appear alongside your native Windows apps looks like magic. It's actually a full Wayland compositor and audio system, tunneled over RDP, running invisibly.