Bit locker recovery

[samarendracrazy50]

how to get only number recovery key by using letter and number mixed recovery key

 

[ex_bubblehead]

You don't. There is no 'mixed' recovery key. What you have is likely the key ID used to retrieve the key from Active Directory. Not on Active Directory? Key not stored on removable media or written down? No recovery. Without that key the contents of that drive are permanently out of reach.