The illustration shows how to use a USB flash drive to install Windows 7 in the XP era. The optical drive is only used to install the system. However, after Windows 7 is released, it can be directly installed with a USB flash drive, saving time and effort. First, download the UltraISO CD image file production/editing/format conversion Tools on the Internet. (Of course, there are other Tools such as WinISO, WinImage, and Daemon Tools) then, prepare a USB flash drive or a mobile hard drive with a size greater than 4 GB (including 4 GB). Note that the USB flash drive or mobile hard drive must be formatted, therefore, you need to back up the data in advance and copy the data after making the boot disk. This does not affect future use. In step 1 of www.2cto.com, you must have an ISO file of the Win7 operating system. You can download it online and open the ISO file in UltraISO.
Step 1
Create a USB flash drive that can be installed with Windows 7. Step 2. Select the boot button → write the image to the hard disk. Make sure that the USB flash drive or mobile hard disk has been inserted.
Create a USB flash drive for Windows 7. Step 3. Select the boot USB flash drive or mobile hard drive to be backed up in the pop-up dialog box. If there is data in it, back up the data in advance and select format, if it is null, click write directly.
Step 4: Create a USB flash drive that can install Win7
Step 5
Step 6: Create a USB flash drive that can be installed with Windows 7. I believe you have learned how to create a USB flash drive that can be installed with Windows 7. When installing the system, you only need to enable usb hdd in the BIOS. Note that during the installation process, you need to set the boot item to hard disk boot when the system is restarted for the first time. Otherwise, the system will continue to be installed by default on the USB flash drive, leading to an endless loop.