Microsoft has been using the old "Project Spartan" code name for the web browser in current Windows 10 builds sent to Windows Insider members. That will officially change with the next build that is sent out, as it will be rebranded to its official name, Microsoft Edge.
In a blog post, Windows Insider head Gabriel Aul gave some instructions on how users can prepare for the change:
Tne result of this naming means that the Microsoft Edge app has a new app ID. This will cause any favorites, cookies, history and Reading list items that you had saved in the Project Spartan app to be lost after upgrading from a previous Windows 10 Insider Preview build. If you want to keep these, you will need to back up your favorites before the next flight! To save your favorites, follow these steps before upgrading to the next build we release (do it now):
- Copy your favorites from %localappdata%/Packages/Microsoft.Windows.Spartan_cw5n1h2txyewy/AC/Spartan/User/Default/Favorites.
- Save them to %userprofile%/Favorites.
- After upgrading to the next build open Microsoft Edge, choose Settings, and you'll see an option to import favorites from another browser. Choose Internet Explorer to import the favorites you saved in your %userprofile% directory into Microsoft Edge.
The Microsoft Edge branding is already available in the version that is included in the leaked 10147 build of Windows 10.