docs: recommend WSL2 for Windows installs

docs/platforms/windows.md

@@ -1,11 +1,73 @@
 ---
-summary: "Windows app status + contribution call"
+summary: "Windows (WSL2) setup + companion app status"
 read_when:
+  - Installing Clawdbot on Windows
   - Looking for Windows companion app status
   - Planning platform coverage or contributions
 ---
-# Windows App
+# Windows (WSL2)
 
-Clawdbot core is fully supported on Windows. The core is written in TypeScript, so it runs anywhere Node runs.
+Clawdbot runs on Windows **via WSL2** (Ubuntu recommended). WSL2 is **strongly
+recommended**; native Windows installs are untested and more problematic. Use
+WSL2 and follow the Linux flow inside it.
 
-We do not have a Windows companion app yet. It is planned, and we would love contributions to make it happen.
+## How to install this correctly
+
+Start here (official WSL2 guide): https://learn.microsoft.com/windows/wsl/install
+
+### 1) Install WSL2 + Ubuntu
+
+Open PowerShell (Admin):
+
+```powershell
+wsl --install
+# Or pick a distro explicitly:
+wsl --list --online
+wsl --install -d Ubuntu-24.04
+```
+
+Reboot if Windows asks.
+
+### 2) Enable systemd (required for daemon install)
+
+In your WSL terminal:
+
+```bash
+sudo tee /etc/wsl.conf >/dev/null <<'EOF'
+[boot]
+systemd=true
+EOF
+```
+
+Then from PowerShell:
+
+```powershell
+wsl --shutdown
+```
+
+Re-open Ubuntu, then verify:
+
+```bash
+systemctl --user status
+```
+
+### 3) Install Clawdbot (inside WSL)
+
+Follow the Linux Getting Started flow inside WSL:
+
+```bash
+git clone https://github.com/clawdbot/clawdbot.git
+cd clawdbot
+pnpm install
+pnpm ui:install
+pnpm ui:build
+pnpm build
+pnpm clawdbot onboard
+```
+
+Full guide: [Getting Started](/getting-started)
+
+## Windows companion app
+
+We do not have a Windows companion app yet. It is planned, and we would love
+contributions to make it happen.