It sounds to me like you're speaking from a frustrating experience. I know I've been there! Really, this extends to any data, personal or private. Clone it, back it up, lock it in a vault. Pray you'll never have a need for it.
If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.
Always clone your data