Microsoft has announced that Windows 10 will officially be available beginning on July 29, and computer users have begun to see upgrade prompts. If you're a PC user on Windows 7 or Windows 8.1, you may have noticed a mysterious new icon has appeared on the right-hand side of your taskbar - or invitation pop-up on your screen.
The icon is Microsoft's notification that invites users to pre-register for their free Windows 10 upgrade ahead of its rollout on July 29. Clicking the small Windows logo prompts users to enter their email address to receive an alert when their operating system upgrade is ready for download.
Should you upgrade to Windows 10? If your computer has Windows 7 - probably not. If you've got Windows 8/8.1 - not yet. Read more & why you shouldn't upgrade right away...