I have two PC's running Windows Live Mail and would like them both to use a common data file on One Drive so both PC's have common email messages.  I can relocate the Windows Live Mail Store Folder for one PC onto the One Drive and it works fine.  However, when I try to change the Store Folder on the second PC to use the new one on the One Drive I get an error message telling me the folder is not empty and I must create a new empty folder on the One Drive for the second PC.  This second folder would leave me with different email on each PC.

Can you help me or tell me I cannot achieve what I want to do?  I have Windows 7 on both PC's.