Can't Find Duplicate *.eml files

I have my Windows Live Mail storage folder on an external USB HDD.

When I try to search for G:\*.eml I get no results.

I have a lot of duplicate emails because Window Live Mail keeps doing a recovery if I disconnect the USB cable.

Any thought on this topic???

Best Regards

P.S. I've tried different settings with same results. It will start searching if I just use G:\