BitLocker is a handy tool that comes with the Enterprise and Ultimate Editions of Windows Vista and 7 and is also available in the Windows 8 Consumer Preview (to say in what editions of Windows 8 it will be present
Import SSL Certificates in Thunderbird
SSL certificates are used to sign and encrypt/decrypt mails in thunderbird via S/MIME. If you have got a certificate that you want to use to validate your identity, import it as follows: Open Thunderbird and go to Edit > Preferences: