emails wiped off

I did the recent update and once it was downloaded, I found that all my emails had been wiped off. They are not on the server, does anyone know where they are on my computer?? using Windows 10.  My computer will not allow me to do a restore point in or outside of windows. Help!!

Hello Marion,
Please clarify whether you updated Windows or eM Client.
You may have missed import option during eM Client install, to start import from V6 again you need to open Menu>File>Import>Import from eM Client Version 6.