How can Win7 system Win8.1 permanently upgrade Win10 system for free?

How can Win7 system Win8.1 permanently upgrade Win10 system for free? From July 29 last year, Microsoft launched a free upgrade of win10 system for Win7 system and Win8.1 system. One year passed quickly. As of May 5, 2016, more than 300 million devices have been installed. The win10 system. However, the one-year period is coming soon. How can Win7/Win8.1 permanently upgrade Win10 for free? Let's take a look at today's tutorial!

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Therefore, according to this regulation We can know how the Win7/Win8.1 system can cleverly avoid the policy risk of Win10 one-year upgrade-free upgrade: upgrade and successfully activate Win10 before July 29. For Microsoft Iron Powder, this method is well-informed, but for new users, the Xiaobian Academy Win10 introductory class should introduce the following methods to "crack" & rdquo; Microsoft free upgrade period:

1. Prepare for the upgrade

The most important thing is to back up your personal files. If you use the upgrade installation method, you can back up the most important files to other partitions. Other software and games can be temporarily ignored. If you want to use the full installation method, you need to backup the existing system software and documents. In general, software and games can be reloaded, and common files and game archives, as well as personal videos, photos, etc., can be saved in other non-system partitions or mobile hard drives.

2, the upgrade process

Download the required Microsoft original ISO CD image (recommended: Win10 system official version of the Chinese ISO system image download address). After downloading, you can use the soft media drive (for upgrade installation), hard disk installation and U disk boot tool (for full installation) to start the upgrade process. The specific installation method can be found in the tutorial "How to upgrade Win7/8.1 to Win10 TH2 official version".

Xiaobian reminder: During the installation process, the system will prompt to enter the product key, you can click "I don't have the product key", skip this step directly, and automatically activate the system after the installation is finished (for upgrade) Installation method) Or manually enter your existing Win7/Win8.1 installation key (for full installation) to activate the system.

3, fall back to the previous system

If you still do not want to use Win10 after the activation is successful, in the settings → update and security & rarr; recovery, select “ fall back to Windows7 /Windows 8.1” For specific steps, see "Win10 System Overdue Method for Returning Win7/Win8.1 System" (for upgrade installation). The rollback process time will not be too long. After the rollback is over, the state before the upgrade can be completely restored, and it is “unscathed”.

Xiaobian reminder: If you want to try again after upgrading for a period of time, it is best not to exceed one month. Because after 30 days of successful upgrade of Win10, if the user has not performed the rollback operation, the original system backup folder Windows.old will be automatically deleted, "lossless rollback" will not be possible, only through formatting Existing Win10 to reinstall Win7/Win8.1.

Successfully rewinding the original system, or users who stay in Win10 can reload Win10 for free indefinitely in the future. In fact, this is the win-win result between users and Microsoft "help each other", Microsoft strives to promote Win10 installation, in the statistics statistics to successfully activate the new device for the first time, so the current installation of more than 300 million devices is the first activation The number of devices. Users responded to Microsoft's call for an active upgrade to Win10, which satisfies Microsoft's need to rapidly popularize new systems, so users get a chance to use them for free.