1) Know nothing about PC’s and how files are stored.
2) Decide to back up your mails.
3) Know nothing about backing up mails and just do whatever strikes your fancy.
4) Reformat your PC.
5) Have no idea how to get the ‘backup’ back.
6) Call me on the phone and expect me to tell how your system (that I have never seen) is set up and then how to get your ‘back up’ back whilst all the time displaying your staggering ignorance of any computer technology postdating the abacus.