The Redmond based software giant confirmed that Windows 8.1 or Windows 7 with Service Pack 1 (SP1), users will get the full-screen notification on their computer. “Sorry to interrupt, but this is important. This notification is a reminder that the Windows 10 free upgrade offer ends on July 29, 2016. Microsoft recommends that you upgrade to Windows 10 before the offer expires.” Microsoft said. Microsoft has been very persistent and aggressive in sending nagging Windows 10 upgrade notifications to Windows 7 and Windows 8 users and seems to conducting some kind of social engineering experiment to test the patience of its users. Not only it has been sending upgrade notifications, in many instances it has been upgrading Windows 7/8.1 users PCs and laptops against their wish. So much so that it has managed to halt a live weather TV report and livestreaming of a game. Not bad!!! this time the Windows 10 upgrade notification resembles more to the infamous BSOD. Well wait, who knows Microsoft has more nagware planned and might be coming your way. July 29 is still far away for Microsoft to come up with more eerie ideas to push through Windows 10 to its users.