OneNote or Evernote
When it comes to digital note-taking and archiving software categories, both of those 800-pound gorillas are in the Windows Store. From a sheer usability standpoint, OneNote MX integrates with Microsoft's modern user interface much more smoothly than Evernote Touch does. Evernote Touch is pretty nerfed compared to the Evernote apps available for other platforms (witness the abundance of poor reviews for Evernote Touch in the Windows Store). However, it has been improving rapidly since its launch.
If you're new to notes and you plan to stick mostly to Windows, I'd recommend skewing toward OneNote. But Evernote Touch works well enough if you're already invested in the Evernote ecosystem. Bonus: The app includes Evernote Business integration.