Developer Tools & Programming

28 guides for Developer Tools & Programming problems on Windows — find yours, then get the step-by-step fix in the app.

What makes developer-tool problems different

Developer environments — Git, Docker, WSL, language runtimes like Python or Node, editors like VS Code — are built by stacking several independent pieces of software on top of each other, each with its own version and its own way of talking to Windows. A problem here is often really a mismatch between two of those pieces, not a failure of any single one.

It's also a category where "it works on another machine" is a genuinely useful clue rather than just a frustration — a difference in installed versions, environment variables, or configuration between two machines is very often the actual cause.

When these problems tend to show up

• Right after installing or updating one piece of a development setup (a language version, an editor, a container tool) that others in the stack now disagree with
• When cloning or opening a project that was built with a different setup than the current machine has
• When a tool that ran fine yesterday suddenly reports a version, path, or permission conflict with no obvious trigger

Why copy-pasted terminal fixes are especially risky here

Developer troubleshooting advice online is often written for a specific version combination that may not match what's actually installed — running a fix meant for a different setup can quietly change environment variables, paths, or configurations in ways that cause a second, harder-to-diagnose problem.

WindowsHelper is being designed to account for which specific versions and tools are actually involved before suggesting anything, rather than offering a single fix that assumes everyone's development setup looks the same.

Browse the guides

• 🤖 Configure Android Development

  Set up Android Studio on Windows with a fast emulator, SDK tools and app signing, and fix ADB connection problems and Gradle build errors.

  Medium30-45 minutes
• 🗄️ Database Development Setup

  Set up SQL Server, MySQL, PostgreSQL or MongoDB for development on Windows, add a database GUI, run databases in Docker and fix connection errors.

  Medium45-60 minutes
• 🐳 Configure Docker on Windows

  Install Docker Desktop with WSL 2, set resource limits, build images, run Compose projects, configure networking and fix Docker Desktop that won't start.

  Medium45-60 minutes
• 🔧 Configure Git and Version Control

  Install Git on Windows, set your identity, connect to GitHub or GitLab with SSH keys or Credential Manager, and fix SSL, line-ending and path errors.

  Medium45-60 minutes
• ⚙️ Fix VS Code Configuration

  Set up VS Code on Windows: install it, add language and Git extensions, adjust settings, fonts and themes, and customize or reset keyboard shortcuts.

  Medium45-60 minutes
• 🐍 Fix Python Development Environment

  Fix Python on Windows: see which Python runs, remove the fake python shortcut, repair PATH, fix pip, SSL and import errors, and set up virtual environments.

  Medium30-45 minutes
• 🛠️ Fix Visual Studio Installation Issues

  Fix Visual Studio installer failures, component errors, and corrupted installations. Covers repair tool, clean uninstall, offline installer, and workload management.

  Medium45-60 minutes
• 🛠️ Fix Web Development Tools

  Set up web development tools on Windows: browsers for testing, local dev servers, trusted HTTPS on localhost, CORS errors and browser DevTools.

  Medium45-60 minutes
• 🐧 Fix Windows Subsystem for Linux

  Install and fix WSL: enable the feature, add a Linux distribution, fix install errors, set WSL 2 limits, solve network and DNS problems, speed up file access.

  Medium45-60 minutes
• 🔧 .NET Framework Issues

  Fix framework SDK and runtime problems on Windows: check what is installed, install or repair the runtime an app needs, clear NuGet caches and fix build errors.

  Medium45-60 minutes
• 🚀 Build & Deploy Master

  Fix build and deployment problems on Windows: clean builds, MSBuild and SDK errors, NuGet and npm caches, broken packages, PATH issues and CI pipelines.

  Medium45-60 minutes
• ⚡ Node.js & npm Issues

  Fix Node.js and npm on Windows: clear a corrupted cache, reinstall node_modules, fix permission and native build errors, switch versions and long-path errors.

  Medium45-60 minutes
• ☕ Configure Java Development

  Complete guide to installing JDK 21, configuring JAVA_HOME, setting up Maven/Gradle, and troubleshooting Java development

  Medium30-45 minutes
• 🔐 Configure SSH and GPG

  Set up SSH keys for Git authentication, configure GPG for commit signing, and manage secure connections

  Medium15-25 minutes
• 💻 Configure Terminal and Shell

  Set up Windows Terminal with a modern shell, Oh My Posh prompt themes and Nerd Fonts for a faster, better-looking command line.

  Easy15-20 minutes
• 🦀 Configure Rust Development

  Install Rust via rustup, configure cargo, set up VS Code, and troubleshoot common Rust issues on Windows

  Medium15-25 minutes
• 🐹 Configure Go Development

  Install Go SDK, configure GOPATH, set up VS Code, and troubleshoot Go development on Windows

  Easy15-20 minutes
• 🔄 Configure Version Managers

  Install and configure nvm-windows, pyenv-win, and other version managers for multi-version development

  Medium30-45 minutes
• 🐘 Configure PHP Development

  Install PHP, configure Composer, set up Laravel, and troubleshoot PHP development on Windows

  Medium30-45 minutes
• ☸️ Configure Kubernetes Local

  Set up local Kubernetes with Docker Desktop, minikube, or Kind for container orchestration development

  Hard30-45 minutes
• ✨ Configure Linting and Formatting

  Set up ESLint, Prettier, and other code quality tools for consistent, clean code across projects

  Easy15-20 minutes
• Fix PowerShell Execution Policy Errors

  Fix the "running scripts is disabled on this system" error: choose a safe execution policy, unblock downloaded scripts and get around Group Policy.

  Easy5-10 minutes
• Fix "Port Already in Use" / EADDRINUSE / localhost Refused

  Fix port conflicts when starting dev servers. Find and kill the blocking process, change ports for React/Next/Vite/Django/Flask/Docker, and prevent zombie processes.

  Easy2 minutes
• Fix Git Merge Conflicts — Resolve or Abort

  Resolve git merge conflicts using VS Code visual merge editor or command line. Covers reading conflict markers, ours/theirs strategy, aborting merges, and prevention.

  Medium5-15 minutes
• Fix VS Code Running Slow / High CPU / Lag

  VS Code slow or using lots of CPU? Spot heavy extensions, trim settings, exclude big folders from file watching, add antivirus exclusions or reset VS Code.

  Easy5-10 minutes
• Fix WSL2 Disk Space Growing Too Large

  Fix WSL2 ext4.vhdx virtual disk consuming too much C: drive space. Clean up Docker images, compact the VHDX, and move WSL to another drive.

  Medium5-15 minutes
• 👨‍💻 Resolve .NET Framework Issues on Windows

  Diagnose, repair, and configure .NET Framework, .NET Core, and .NET 5+ runtimes to fix application errors

  Hard15-30 minutes
• 👨‍💻 Resolve Node.js and npm Issues

  Fix installation failures, permission errors, version conflicts, and build tool problems with Node.js and npm

  Hard15-30 minutes

Common questions