My laptop no longer works (it freezes on the boot up screen with a No sign). I took it to the Apple Store and they said that I need to reinstall the operating system. I wanted to back-up the file, but they said it cannot be done because of the FileVault feature, the data is locked and secured. This is unacceptable that if my OS crashes, I cannot back up my hard drive! I was thinking of at least taking out the HD, and connect to another computer and recover my files before formatting it, but apparently that's not possible. What are my options?