One More Time: Get Windows 10 notification

Furthermore, with the free upgrade offer aimed at Windows 7 and 8.1 users ending in less than 30 days, you would expect Windows 10 to experience significant adoption boosts these days.

While Gabe Newell mainly complained about Microsoft locking other companies out of Windows 10 (which Microsoft has vociferously denied) it is clear to me that Microsoft would not have to do this to firmly take control of the Windows gaming ecosystem over all their devices.

Windows 10 has stirred controversy on several fronts, including whether it gives the company too much information about its users and whether the company is going too far in its efforts to move users of older versions of Windows to the new one. A new set of update prompts rolling out will change the red X back to dismissing the upgrade prompt for a few days, he said, and will offer users the options to update now, choose a time, or decline the offer. Since Microsoft pushed Get Windows 10 in various iterations on devices over and over again, it nearly felt like malware that users could not get rid of.

You have disabled the Windows 10 upgrade or you have disabled the offer screen through registry key settings.

Microsoft recommends upgrading to Windows 10 - the most secure Windows ever built.

You have previously uninstalled Windows 10 after you upgrade. Over 300 million people have upgraded. First, users can hit the upgrade now button to start the upgrade process right away.

There is also a "do not notify me again" option, and another notification option to get three more notifications about the upgrade. It will probably be very jarring to a Windows 7 user to see the entire screen turn a slightly purple-ish blue in a UI style that you've never seen before, asking you to essentially flip your PC upside down.

Your Windows 10 installation failed and rolled back.

Your computer is detected to be incompatible with Windows 10.

It's interesting to see that this prompt looks like Windows 8.x, but will also appear on Windows 7 machines.

Source: One More Time: Get Windows 10 notification