If i format the PC what happen to emails of the Outlook 2016? I know i could save the folder where the emails are but if i dont save and install a fresh outlook on other computer and sign in the emails dont appear? I get a outlook empty? Thanks
If you don't save your PST and/or OST files, then yes you will have a blank Outlook unless your emails are saved on the server side of your ISP, then it will pull them down from there in a new local file.
it depends where your emails are stored, if you are using exchange then they'll be on the servers, gmail & outlook on the servers, cheap ass pop3 then you may have set them to download and they'll be just on your PC. It has nothing to do with 'outlook being from the last century'
It's not an outlook setting, it's a setting of your email provider, you need to find out from them if emails are brought down from the server, or just copied from the server. If copied then they'll all be copied again when you connect to their service. You WILL need your email settings, you password etc. You may be able to export these settings, but be sure to have then noted down somewhere.