Simple analysis of the steps to install Win7 system on U disk

                  This article analyzes how to use the U disk to install the Windows 7 system.
This method can help the comrades who have ISO but no CD or no CD-ROM to install win7 with a USB flash drive.

premise:
1. There are win7 installation ISO, or all installation files.
2. There are 4G or more capacity USB flash drives.
3. The computer supports USB boot mode.

production process:
1. Quickly format the USB flash drive. (Pay attention to backup USB flash drive data, avoid cups)
2. Use a virtual drive to load the win7 CD image.
3. Open the command line and switch to the boot directory of the virtual drive.
4. Run the command bootsect /nt60 G: (G: is the drive letter of the USB flash drive)
5. Copy all the files in the win7 image to the USB flash drive.

installation process:
1. ThinkPad press F12 at startup to select the boot mode directly, select USB boot
2. Other types of computers need to enter the BIOS settings USB flash drive to start.
3. Set the USB flash drive to boot, boot the USB flash drive, and enter the normal installation. The steps are the same as the CD installation.