WD My Passport External Drıve Message

Hi All,
İ just connected my new WD 1 TB external Drive on my Windows 7 ,64 bit laptop

and tried to Clone my system via my EASE US TODO Back up - FREE .

When i clicked on ’ next ’ i got the following message

’ System clone does not support cloning MBR disk to GPT or vice versa,please use the disk with the same type,or convert the target disk,into the same type and than try to clone again. ’

İ haven’t got a clue what this means AND what i’m supposed to do and HOW ?

Would appreciate some step by step instruction if possible…

Thanks

Julia

Hi All,
i solved my problem myself
thank you.