How to install Win10 dual system under Win8? Win8.1 and Win10 dual system installation tutorial diagram

front to bring you U disk installation Win10 and Win8/8.1 upgrade installation Win10 system tutorial, the first two installation methods are single system, but because WIn10 preview version is still There are a lot of software compatibility problems, so it is not recommended to upgrade or reinstall Win10 system directly. It is recommended that you install Win8.1 and Win10 dual systems, you can experience Win10 without affecting the original Win8/8.1 system. Not much nonsense, the following is a Win10/8.1 download Win10 dual system tutorial.
Win8 download Win10 dual system Win8.1 and Win10 dual system installation tutorial

First, prepare for work

a) Create a new installation partition for Win10

First we need to prepare a pure disk partition for the next Win10 preview installation. Here I teach you how to create a new partition directly in the Win8/8.1 system. The specific method is as follows.

First, after entering the Win8.1 computer management, we click on "Disk Management", then we need to find a partition with a large remaining space, right click on it, pop up In the menu, select “ compressed volume & rdquo;, as shown in the following interface diagram.
Disk Compressed Volume

Second, in the pop-up compressed volume dialog box, we need to enter the size of the compressed space. Since the author chose the F disk of 300G capacity, it has already used 20GB, and the remaining 280GB capacity is available. Here is used to install Win10 system, and Win10 installation disk, Win10 system disk space is generally recommended to reserve more than 30GB capacity (this PC841.COM original tutorial), here Xiaobian to allocate 60GB, which is 60 * 1024M = 61440 (M), after entering this capacity, click on the "Compression" at the bottom, as shown below.

Third, this time, this new partition is not available, here we need to create a new simple volume. To do this, right click on the new partition and select “New Simple Volume” as shown below:

The last step is completed, and the new partition of Win8.1 is completed. After we enter my computer, we will see a new hard disk partition, which will be used as the Win10 system installation disk, as shown below.

If you do not understand the above steps, please go to the detailed tutorial to read: "How to partition Win8.1 Win8.1 new disk partition tutorial."

b) Win8.1 and Win10 dual system installation preparations

1, first download the latest ISO file format Win10 system image in Win8/8.1 computer;

> ;>.Win10 Simplified Chinese version download point to enter

Note: Win8.1 and Win10 system digits should be the same, for example, our Win8.1 system is 64-bit, then download Win10 system, you must also Choose 64-bit, if the double-system number is different, the installation will go wrong. This point everyone needs special attention. If you don't know, please read the tutorial: How to check the Win8.1 version and simply view the Win8.1 version.

2, because Win8/8.1 and above can directly open the ISO image file, so we can directly double-click the downloaded ISO image file to run, then you will enter the DVD drive directory, and then in this case, we will Go to the "sources” folder, as shown below.
Enter the sources folder

3, after entering the sources folder directory, we will find the [setup] system installation program in this folder, double-click to open the run, as shown below.
Win8.1 and Win10 dual system installation tutorial

Note: Win8.1 and Win10 dual system installation tutorial, a very important step is to run the setup folder of the sources folder, if it is Win10 To replace the Win8/8.1 system, that is, directly upgrade Win8.1 to Win10, then directly run the setup installation program in the root directory above, upgrade the installation, please read: "Win8 how to upgrade Win10 Win8.1 upgrade Win10 diagram Text tutorial.

Second, Win8.1 download Win10 dual system tutorial

1, after running the setup installer under the sources folder, you can see the following familiar system installer interface, first Select [Install Online Update Now (Recommended)] as shown below.

2, will enter the Win10 installation license terms, we check the "I accept the license terms", and then click [Next] at the bottom, as shown below.

3. Next, select which type of installation you want to perform [Custom: Install Windows (Advanced) only], as shown below.

4, next need to choose which disk you will install Win10, here we directly choose, above our new pure partition disk can be, after completion, continue to click [Next], as shown below Shown.

5, after that, we basically do not need to operate, waiting for its automatic completion, Win10 installation takes a long time, and the installation process will automatically restart several times, we only need patience Just wait for it to complete. As shown below.

6, after the computer restarts several times, it will enter the first installation setup of Win10, mainly need to create the user name, password and basic settings, etc. We follow the prompts to complete step by step, and finally we can enter The Win10 cooking interface is as shown below.
The picture is Win10 desktop

For the first time Win10 will not be installed, please read the following: Win10 preview version how to install U disk installation Win10 graphic tutorial.

After Win10 is successfully installed under Win8.1, after each computer restart or boot, it will enter the system selection interface. You can freely choose to enter Win10 or Win8.1 system, as shown below.
Win8.1/Win10 Dual System Switching Method

Win8.1 and Win10 Dual System Installation Tutorials are introduced here for you. Overall, it is very simple, no need to set BIOS, no need to use virtual CD-ROM. It is completely installed in the Win8.1 system. The above shows that Win10 is installed under Win8.1, and the Win8 system is the same.