有台久了的笔记本，有时会用下（光驱坏了，不支持U盘启动，有软盘）；系统坏麻烦，现在处理就是拆硬盘；太麻烦了。
一、目的启动XPE系统（硬盘小不能格式化C盘，有文件;XPE启动后再恢复C盘系统，它处有备份)
1、想软盘启动电脑且同时加载USB驱动，U盘可用（备注，可以看到加载的U盘,盘符C
2、在U盘使用GRUB4DOS启动U盘的老毛桃XPE系统(备注，总是不能启动）
二、请详解如何实现启动XPE，在U盘使用GRUB4DOS启动U盘的老毛桃XPE系统（越细越好）
There is an old laptop. Sometimes it is used (the CD - ROM is broken, USB boot is not supported, and there are floppy disks); it is troublesome when the system is broken. Now the solution is to remove the hard disk; it is too troublesome.
I. Purpose: Boot the XPE system (the hard disk is small, so the C drive cannot be formatted, and there are files; after the XPE is booted, the system of the C drive is restored, and there is a backup elsewhere)
1. Want to boot the computer with a floppy disk and simultaneously load the USB driver, and the USB flash drive can be used (Note: The loaded USB flash drive can be seen, and the drive letter is C:)
2. Use GRUB4DOS on the USB flash drive to boot the Lao Maotao XPE system on the USB flash drive (Note: It always cannot be booted)
II. Please explain in detail how to achieve booting the XPE, and using GRUB4DOS on the USB flash drive to boot the Lao Maotao XPE system on the USB flash drive (the more detailed the better)
