Win10 beta users how to upgrade the official version

Since the official version of Win10 has not yet been released, the current Win10 users can be said to be beta users. Win7, Win8 users can directly upgrade the official version of Win10 within one year, then how to upgrade the official version of Win10 beta users?

Microsoft has promised to allow registered users in the Windows Insiders project to upgrade from the Windows 10 Preview to the official version for free on July 29, but the initial presentation is so general that it has caused many users to misunderstand. .
Today, Microsoft explained the policy of the official version of the Windows 10 Preview Edition through an official blog.
In general, when the official version of Windows 10 arrives, Windows Insiders users have two choices:
1, no upgrade, continue to test user identity;
2, leave the test user community, upgrade to formal Version of Windows 10.
For the first case, Microsoft said that users who choose to stay in the Windows Insiders project will continue to receive updates to the subsequent preview system. The activation of the system is also using the preview version of the Key. Time to experience the new features Microsoft provides for Windows.
For those who choose to upgrade to the official version of Windows 10, first of all, you must ensure that your computer has genuine Windows 7/8.1 installed, so that you can successfully activate Windows 10 after installing it. If the preview system is installed on the user's computer, then you must first roll back to Windows 7/8.1 and then upgrade.
At the same time, Windows XP and Windows Vista users cannot upgrade to Windows 10 for free.
The above is the Win10 beta version of the user upgrade version of the official version, of course, you should also pay attention to the latest progress, maybe Microsoft will open a direct upgrade channel for the test version of Win10 users later.