Support for Windows 7 ends on January 14, 2020, and as Microsoft did with Windows XP, the company will start using nag banners to get users to upgrade. In this case, the upgrade point is to Windows 10.
To help our customers get advanced notice of this change, we are reaching out with information and resources. Beginning next month, if you are a Windows 7 customer, you can expect to see a notification appear on your Windows 7 PC. This is a courtesy reminder that you can expect to see a handful of times in 2019. By starting the reminders now, our hope is that you have time to plan and prepare for this transition. These notifications are designed to help provide information only and if you would prefer not to receive them again, you’ll be able to select an option for “do not notify me again,” and we will not send you any further reminders. Just as software has changed over the years, so has the hardware. To learn more about the latest line-up of modern PCs and information for moving from Windows 7 to Windows 10, just click on the “learn more” button on the notification.
Full announcement: Making the transition to Windows 10 and Office 365