trying to help out a friend who lost their data on laptop but has backup on a 250g western digital external drive. Doesnt say what model it is but if i give serial number could you help with restoring the data. I viewed the data but it has all these folders in alphabetical order like a b c d e folders but inside is encrypted data it looks like. Actually just looked at back of drive and i think model is WD2500UD17-005 and serial number is WXC707028722. Thanks.