In case of losing your encryption key, or any other security reason, you might want to change the encryption key of your data. An encryption key however is unique and changing it will cause you to be unable to restore previously backed up data.
You can create a new key by creating a new backupset with the same backupsource (in PCB you have to remove your old backupset first). If you want to use a key which is different than your password, select ‘custom’ . (Also see the encryption section in: http://support.backup-connect.com/2011/01/12/how-to-install-windows/).
If you reinstall the software (this is necessary for upgrading the software), it is important to remember your key well. After installation you will be prompted to enter a new encryption key. Use custom if your key is different from you password to prevent the backup from containing 2 keys.
To reset your password see: http://support.backup-connect.com/2011/05/27/faq-reset-password/
We would like to remind you that it is very important to keep a record of your password an encryption key.