Tips for quickly upgrading Win7 system to the latest Win10 system for free by using "system vulnerability"! Microsoft released Windows10 system in 2015, and said that it will provide Windows10 free of charge to genuine users of Windows7 and Windows8.1 for the first year. The proposal aims to transfer users to the new Windows 10 operating system, and after upgrading to Windows 10, they can get subsequent permanent free upgrades. But Yunyang Taoge has learned that the official statement of this offer is only that