How to install the system without the U disk and CD

Many times when it comes to making a boot disk with a USB flash drive to install the system or burn it into a DVD disc to install the system as a system disk, but sometimes the computer system can be used before the system is installed. It’s just that some functions are abnormal. Is there any simpler one? In this case, if you install the system without a USB flash drive, please follow the steps below. It is very simple. 1. Install the computer system corresponding to the computer system. There are two kinds of system images. ISO image, the second is GHO image 2. The first one: For the ISO image file, you can use the common compression software such as 2345 compression software, 360 compression software, etc. You can also open the ISO image file. Here we take 2345 compression software as an example, such as Figure, click on the virtual drive, and then select the ISO image file, here we load the object with xp and win7 ISO, open the computer after loading or my computer will see the two ISO image files just loaded. 3. If it is the installed version of the ISO system image, then you can find the installation program such as setup.exe, click setup and follow the instructions to install step by step. The following figure shows the win7 installation system and the xp installation system. 4. If it is a Ghost version of the system image, then you can find the GHO-end file in the image file, this file is the system file, copy this out (copy to a place other than the C drive), and then download a key Ghost Tools, run the installation, you can see the one-click Ghost interface, follow the instructions step by step, so the system is very easy to install. 5. The second type: directly download the GHO image file At this point, you don't have to repeat the above-mentioned Ghost operation method to complete the system installation.