Outlook (new)

Здравствуйте
подскажите как защитить почтовую программу и проверить и очистить ее от нежелательных угроз

I recently lost an email account in Outlook and all the folders and subfolders files with it after a Windows 10 reset. I noticed that my Updater 2 saved some PST email files to my download folders in Explorer, but I need to see if these are the files I'm missing and how do I restore them to Outlook if they are the ones I'm looking for? Thanks.