Today is the final day to upgrade your copy of Windows 7, 8 or 8.1 to Windows 10 for free. Microsoft will soon be charging USD $120 to upgrade. This comes just days before they release the ‘Anniversary Update’ this Tuesday bring a ton of new features. If you’re interested in updating, but have been holding out. Now is the time to do it. You can also revert back to your previous version of Windows within 30 days of upgrading, if you’re having issues or not happy with upgrading. Reverting back to the previous version of Windows does not affect your License for Windows 10, So if you decide to go back later on, it will still be activated.