How to install and upgrade the win10 preview version

Win10 technology preview version is now available for download, then, how to install Win10 technology preview? This article for the novice friends to explain a few commonly used installation methods, please choose the most according to their needs Good installation method. In this small series, I remind you that Win10 Technology Preview is released by Microsoft in order to receive feedback from technicians to further improve and improve the product. In the process of use, there will inevitably be some bugs or software compatibility problems. It is best to install dual systems first. Or experience the latest features of Win10 in a virtual machine. An alternative installation method for a conventional co-digit system is provided below for your reference only.

Replace the current system (I will upgrade the current system to Win10 technology preview)
1. After downloading the image, open the ISO image (Note: Win8/8.1 can be directly double-clicked, Win7 can be loaded with virtual CD-ROM drive ), directly run setup.exe in the mirror root directory, as shown below.

2. Accept the license terms

3. Check the installation environment. This may take a while, depending on the amount of software in the system you are currently using.

4. After the check is complete, the installer will list things you need to be aware of, such as missing system features or existing software. Compatibility and so on. If there are no things to note, the results shown below will appear.

5. Here you can also change the content that needs to be retained after the upgrade. Click “change the content to be kept", the following image appears

6. Select the item to keep.
Note that no matter which option you choose, the current system will be replaced by the Win10 Technology Preview after the upgrade. The “personal files” refers to the contents of the “Users” folder; the specific applications can be retained depending on the compatibility of these applications in the Win10 preview; if you select “do not retain any content”, After the upgrade, “Personal Files” will still be saved and moved to a folder named Windows.old.

Click Next to start the installation. If you choose to keep all content upgrades, this can be a very time consuming process.
The disadvantage of this method is that it cannot perform a formatted installation (ie, a clean installation).