You can t use a USB drive without a CD ROM drive, only a system image file how to install the system

Two ways, the first is to right-click to decompress this image! After unzipping, there will be a similar setup inside, double-click to run, and press and hold step by step to boot the installation! The second way, a virtual optical drive, there are a lot of **, after installation, use the virtual optical drive to open the system image!

You turn on my computer again, there is an extra drive letter like an optical drive in that position of the optical drive, open it, double-click setup, and then follow the boot...

Image files,There are a lot of them on the Internet,Put one down and put it on the U disk,Then you can access your U disk after booting into PE,Load your installation file (ISO) with the virtual drive in PE If it's a ghost file, use Ghost to restore it,Finally, good luck。

The system is okay with the ghost installer.,Crash can only disassemble the hard disk.,Install it on a different machine!

You can also directly use UltraISO software to open the ISO file and burn it directly to a USB flash drive. But this method is not suitable, or PE is easy to use, easy to back up the original system files.

The following is the ISO image written to the U disk, and the steps to install the Win7 original system with the U disk:

1. First of all, plug the USB flash drive into the computer.

2. Open the software, click "File" - >Open" to open the original ISO image of Windows 7.

3. After opening the ISO image file, click "Start" - >Write Hard Disk Image" to write the ISO image to the USB flash drive.

4. Make sure the hard drive is a U disk, and the other defaults click "Write".

5. Note that writing the ISO image to the USB flash drive will erase all the data of the USB flash drive, remember to back up important information.

6. The write is successful. This USB flash drive can be used to install the original Windows 7 system.

Because it is installed locally, you can put the image file into a U disk or a non-C disk system disk. Because your USB flash drive has installed a system, when the USB flash drive starts, it is the system that enters the USB flash drive, the system of the USB flash drive, and the hardware of the shared computer, so after entering the USB flash drive system, you can see the files on the computer's hard disk.

Restore the ISO image file to the USB flash drive that is ready to start, restart the computer into the USB flash drive PE, and then run the installation program in the PE. Don't write it with software, if you write it like a boot USB flash drive, the USB flash drive won't start.

The operating system can be installed in a USB flash drive or a non-system disk of the computer.

You can make a USB flash drive boot disk, select a USB flash drive to install the system, and copy the ghost system files in the USB flash drive in advance. Or you burn the system disc to a USB flash drive by burning an image, and then select the USB flash drive to boot it.

U disk to another computer to make a boot disk, reinstall the system.

Just copy the system directly to your USB flash drive, and then install it on the computer.