How do I upgrade to Windows 10 for free before 29 July?

Most Windows 7, 8, and 8.1 users have, at this point, seen countless pop-up notifications advertising the free Windows 10 upgrade. If you’ve seen these notifications, your Windows 10 upgrade is reserved.

Click the Windows 10 icon in your system tray, directly left of the clock, and follow the instructions to install Windows 10. Can’t find the icon in question? You might need to install some updates on your system. Check out our guide to installing Windows 10 when you can’t find the upgrade notification for a tutorial. We’ve also outlined solutions for common problems while installing Windows 10, in case you run into any issues.