How to Delete Facebook Account Completely
Before deleting your account, it may be worth downloading your information from FB. To do this, follow these steps:
1. Click the account menu down arrow at the top right of any Facebook page in your web browser
2. Click ‘Download a copy of your Facebook data’ at the bottom of your General Account Settings
3. Choose ‘Start My Archive’
The file that begins downloading will contain your Facebook profile information, so be very careful about where you keep it.