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+# Setup Guide
+
+This guide covers the complete setup process for ACC Server Manager.
+
+## Prerequisites
+
+### Required Software
+
+1. **Windows OS**: Windows 10/11 or Windows Server 2016+
+2. **Go**: Version 1.23.0+ ([Download](https://golang.org/dl/))
+3. **SteamCMD**: For ACC server installation ([Download](https://steamcdn-a.akamaihd.net/client/installer/steamcmd.zip))
+4. **NSSM**: For Windows service management ([Download](https://nssm.cc/release/nssm-2.24.zip))
+
+### System Requirements
+
+- Administrator privileges (for service and firewall management)
+- At least 4GB RAM
+- 10GB+ free disk space for ACC servers
+
+## Installation Steps
+
+### 1. Install SteamCMD
+
+1. Download SteamCMD from the link above
+2. Extract to `C:\steamcmd\`
+3. Run `steamcmd.exe` once to complete setup
+
+### 2. Install NSSM
+
+1. Download NSSM from the link above
+2. Extract the appropriate version (32-bit or 64-bit)
+3. Copy `nssm.exe` to the ACC Server Manager directory or add to PATH
+
+### 3. Build ACC Server Manager
+
+```bash
+# Clone the repository
+git clone <repository-url>
+cd acc-server-manager
+
+# Build the application
+go build -o api.exe cmd/api/main.go
+```
+
+### 4. Configure Environment
+
+Run the setup script to generate secure configuration:
+
+```powershell
+# PowerShell
+.\scripts\generate-secrets.ps1
+```
+
+This creates a `.env` file with secure random keys.
+
+### 5. Set Tool Paths (Optional)
+
+If your tools are not in the default locations:
+
+```powershell
+# PowerShell
+$env:STEAMCMD_PATH = "D:\tools\steamcmd\steamcmd.exe"
+$env:NSSM_PATH = "D:\tools\nssm\nssm.exe"
+```
+
+### 6. First Run
+
+```bash
+# Start the server
+./api.exe
+```
+
+The server will start on http://localhost:3000
+
+### 7. Initial Login
+
+1. Open http://localhost:3000 in your browser
+2. Default credentials:
+   - Username: `admin`
+   - Password: Set in `.env` file or use default (change immediately)
+
+## Post-Installation
+
+### Configure Steam Credentials
+
+1. Log into the web interface
+2. Go to Settings → Steam Configuration
+3. Enter your Steam credentials (encrypted storage)
+
+### Create Your First Server
+
+1. Click "Add Server"
+2. Enter server details
+3. Click "Install" to download ACC server files via Steam
+4. Configure and start your server
+
+## Running as a Service
+
+To run ACC Server Manager as a Windows service:
+
+```bash
+# Install service
+nssm install "ACC Server Manager" "C:\path\to\api.exe"
+
+# Start service
+nssm start "ACC Server Manager"
+```
+
+## Verify Installation
+
+Check that everything is working:
+
+1. Access http://localhost:3000
+2. Check logs in `logs/` directory
+3. Try creating a test server
+
+## Next Steps
+
+- [Configure your servers](CONFIG.md)
+- [Review API documentation](API.md)
+- [Troubleshooting guide](TROUBLESHOOTING.md)