How to win8.1 win8?

  

When the preview version of win8.1 has a message saying that the preview version is not supported, but it can be restored to the factory state; now the official version of win8.1 is out, how can win8.1 return to win8 or win8.1 How to downgrade the official version?

How to return to win8 method win8.1:

Click in the lower right corner: Settings - again in the lower right corner - change computer settings - change and restore - restore

How to return to win8 method win2:

Install a GHO format win7 with a key ghost (because the ISO file cannot be recognized), win7 is loaded with Rubik's virtual optical drive Install win8 once.

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