How to install Win10 dual system? The

Windows10 preview was released, and everyone is rushing to install Win10 to experience it. There are many ways to install it, such as using virtual disks, USB flash drives, and so on. This article brings the easiest way: partition installation.
Because the technology preview version is released now, many new features are not released. The win10 system itself may have more or less bugs. Therefore, Xiaobian does not recommend that you use the system as the main system, and it is brand new. The installation method is also very simple, so today we will talk about the installation method of win10 dual system, we can install a Win10 operating system on win7 or win8.
Install Win10 dual system the easiest way to install:
First, partition
We must first prepare a partition for Win10 system, it is best to prepare a clean partition, so you can delete it when you don't want to use it later. If you already have a partition to use directly, if not, you can divide a partition out of a larger partition;
1, open the disk management, find a partition with a large remaining space, right click and select “ Compressed volume & rdquo;:

2, enter the appropriate size (here as a demonstration only allocate 30GB space, recommended not less than 40GB), click & ldquo; compression & rdquo;. An unallocated space will appear after the partition you selected.

3. Right click on the unallocated space, select “New Simple Volume", and then click on the window that appears in the window that appears next to “ Note that if you are prompted to convert the hard disk to a dynamic disk, it is because your hard disk is an MBR partition structure. The number of primary partitions has exceeded the maximum limit of the partition type ——4, please abandon the partition operation.
Second, start to install win10 system:
1, after downloading the image, open the ISO image (Note: Win8/8.1 can be directly double-clicked, Win7 can be used to download the virtual CD-ROM or extract the ISO file) Run setup.exe under the sources folder as shown below.