How can I recognize in ubuntu, locked disk (by bitlocker win7 x64). I lost bitlocker code, morover I lost my windows too. Recently I could'nt install win 7, it asks me bitlocker code. I wanted to copy all my data using ubuntu (it is in bootable USB flash), but ubuntu doesn't show this disk.
You won't be able to read that disk unless you created a backup of your key. If you encrypt a disk/files, you can't read them without the correct key. There are no real issues with using encryption, but you need to understand what it is and how it works before using it.