The official Win8.1 ISO and how to make the installation disk

Normally, whenever a new OS or OS update is released, Microsoft will allow users to download the IOS and install it using DVD/USB. Microsoft officially released the Win8.1 update last week, and today's new front editor has become a little trick for you to get the Win8.1 ISO and make the system installation disk.
1, go to the Microsoft official page “ Use only the product key to upgrade Windows 
2. Click the “Install Win8” button to download the installation assistant. After the download is complete, open it.

3. Enter the product key of your previous Win8 or Win8 Professional or Win8 upgrade and download the corresponding version.

4. When it starts downloading, click the x in the upper right corner of the window to close the installation assistant.
5, re-open the previous Windows upgrade page (http://windows.microsoft.com/zh-cn/windows-8/upgrade-product-key-only), click “Install Win8.1”, then Download the new installation assistant.
6, run the latest download installation assistant, download Win8.1.

7. When the Win8.1 download is complete, choose to install from the media. This option allows you to make a USB or DVD system installation disk.

8. If you want to store the installation file in the U disk, select the first one. If you want to directly obtain the ISO file, select the second option.