# Registry Backup Scripts

Scripts for backing up GE Aircraft Engines registry keys for disaster recovery and auditing.

## Quick Start

```batch
Backup-GERegistry.bat
```

Or with custom backup path:
```batch
Backup-GERegistry.bat "\\server\share\backups"
```

---

## Batch Launchers (Entry Points)

| Batch File | Purpose |
|------------|---------|
| `Backup-GERegistry.bat` | Main launcher for registry backup |

---

## PowerShell Scripts

### Backup-GERegistry.ps1
**GE Registry backup utility** - Backs up GE Aircraft Engines registry keys from both 32-bit and 64-bit locations.

**What it does:**
1. Reads machine number from GE registry or extracts from hostname
2. Gets serial number from BIOS
3. Exports registry keys from both locations:
   - `HKLM:\Software\GE Aircraft Engines` (32-bit)
   - `HKLM:\Software\WOW6432Node\GE Aircraft Engines` (64-bit)
4. Saves backup files to network share

**Usage:**
```powershell
# Interactive backup with console output
.\Backup-GERegistry.ps1

# Silent backup (for scheduled tasks)
.\Backup-GERegistry.ps1 -Silent

# Custom backup path
.\Backup-GERegistry.ps1 -BackupPath "\\server\share\backups"
```

**Parameters:**
| Parameter | Default | Description |
|-----------|---------|-------------|
| `-BackupPath` | `S:\DT\cameron\scan\backup\reg` | Network path for backup files |
| `-Silent` | `$false` | Suppress console output |

**Output Filename Format:**
```
[machinenumber-]serialnumber-YYYY-MM-DD.reg

Examples:
3104-G4B48FZ3ESF-2025-12-10.reg
7402-G9WP26X3ESF-2025-12-10.reg
```

**Registry Keys Backed Up:**
- DNC Configuration (EFOCAS, SERIAL, NTSHR, etc.)
- DualPath settings (Path1Name, Path2Name)
- Machine number assignments
- Communication settings
- All GE Aircraft Engines subkeys

---

## Batch File Launchers

| File | Purpose |
|------|---------|
| `Backup-GERegistry.bat` | Standard launcher for registry backup |

---

## Requirements

- PowerShell 5.1 or later
- Read access to registry
- Write access to backup network share
- Works without administrator privileges (registry read-only)

## Use Cases

### Manual Backup Before Changes
```powershell
# Before making registry changes, create a backup
.\Backup-GERegistry.ps1
```

### Automated Scheduled Backup
```powershell
# In scheduled task, run silently
.\Backup-GERegistry.ps1 -Silent
```

### Restore from Backup
```cmd
# Double-click the .reg file or run:
regedit /s "\\server\share\backups\3104-G4B48FZ3ESF-2025-12-10.reg"
```

## Backup Contents

The backup `.reg` file includes:
- Complete GE Aircraft Engines registry tree
- DNC service configurations
- Machine communication settings
- Serial port assignments
- DualPath configurations
- Custom GE software settings

## Important Notes

- Backups are named with machine number (if available) for easy identification
- Both 32-bit and 64-bit registry locations are exported
- Existing backups are not overwritten (date is included in filename)
- Silent mode is recommended for scheduled tasks to avoid interrupting users