Microsoft is taking its effort to get people to upgrade to Windows 10 one step further by adding Windows 10 upgrade options into a security patch for Internet Explorer 11. This patch was part of this week's Patch Tuesday rollout and is described as an enhancement to Internet 11 capabilities to upgrade Windows 8.1 and Windows 7.
ExtremeTech wrote an article about it but notes it's unclear what the patch does. Some sites report it adds a Windows 10 upgrade pop-up to IE11 but it appears this is not related to this patch.
Some sites are reporting that after installing the update, Internet Explorer 11 presents you with a giant “Upgrade” banner after visiting MSN.com. This is true — but it’s also not at all new. I used to use IE11 for troubleshooting and on a few websites where I needed it for compatibility reasons. The giant pop-overs that prompt users to upgrade to Windows 10 started appearing on MSN.com after Windows 10 went live, not as a result of this update.