One way to install Windows 8 on Windows 7

Abstract: you do not need to use a dial, a USB flash drive, or a virtual machine. You only need an empty partition to experience Win8 without affecting Windows 7, test availability (32-bit Windows 7 flagship edition with 32-bit Windows 8 consumer preview edition ).

1. download and install the image

Download link http://windows.microsoft.com/en-US/windows-8/iso such:
Based on your current system, 32-bit is the next 32-bit, and 64-bit is the next 64-bit.

Key is: DNJXJ-7XBW8-2378T-X22TX-BKG7J (need to write down, input during installation)

Ii. Partitioning

Any partition except Windows 7 system partition can be formatted in advance. We recommend that you use a larger partition to install the application.
You can leave a partition other than the system partition empty and install it there. You can also use the disk management function provided by Windows 7 to compress the volume. In short, a blank partition is created. For example:

3. decompress and install the image

Decompress the image (use WinRAR, virtual optical drive, and other software). Do not decompress the image to the partition where you want to install Win8.

Run setup.exe

4.1、run setup.exe under the sourcesfolder. Note that it must be in the Sources folder, for example:

4.2. Click the do not get Installation Product latest update option in the dialog box that appears later, enter the product key: DNJXJ-7XBW8-2378T-X22TX-BKG7J such:

5. Restart several times for Automatic Installation

Restart n times during the period. Remember to select which system to enter during the period, and select Windows 8. It is not until Windows 8 is finally entered. Since Windows 7 is installed on the computer, the system will be prompted to start Windows 7 or Windows 8 After restart.

6. Set the startup sequence

Method 1: After the installation is complete, restart the instance. By default, the instance enters Windows 8, but you have an option before the installation, there are three options: Windows 8 consumer preview and Windows 7 at the bottom. You can set the default boot item after clicking enter. If you want to change it to Windows 7, set it. Then start Windows 7 by default, but there is a chance to select Windows 8 during the boot process.

Method 2: restart Windows 7, press win + R, enter msconfig to open the system configuration, switch to boot, set Windows 7 to the default value, and then prompt restart. Same effect as method 1. For example:

7. about deleting Win8

1. Go to Windows 7 and follow the above steps to open the system configuration, and then delete the Windows 8 startup Item.
2. format the partition where Windows 8 is located.