New Outlook stores your settings in a hidden file. You should back it up

The Dell Laptop Buying Guide UK: Which Dell Laptop Should You Buy? When you purchase through links in our articles, we may earn a small commission. New Outlook stores your settings in a hidden file. Reinstalling Outlook or switching PCs? Here's how to back up and restore your account settings with one simple file copy. For the past couple of years, Microsoft has made a concerted effort to move users from the classic Outlook app for Windows 11 to "new" Outlook, a web-based app.