A proper BitLocker Recovery Key consists of 48 digits arranged in 8 groups of 6 digits, each group separated by a dash, there are no letters. If the 'key' you have has letters in it then it isn't a BitLocker key.
A proper BitLocker Recovery Key consists of 48 digits arranged in 8 groups of 6 digits, each group separated by a dash, there are no letters. If the 'key' you have has letters in it then it isn't a BitLocker key.