1、打开命令行
2、cd到dd目录
3、运行命令：dd --list
4、找到u盘（红色）
Win32 Available Volume Information
\\.\Volume{7cf2f59c-6207-11e1-b81a-806e6f6e6963}\
link to \\?\Device\HarddiskVolume1
fixed media
Mounted on \\.\c:
\\.\Volume{9ba58399-a85a-11e1-b19f-005056c00008}\
link to \\?\Device\HarddiskVolume5
removeable media
Mounted on \\.\h:
\\.\Volume{7cf2f59d-6207-11e1-b81a-806e6f6e6963}\
link to \\?\Device\HarddiskVolume2
fixed media
Mounted on \\.\d:
\\.\Volume{7cf2f59e-6207-11e1-b81a-806e6f6e6963}\
link to \\?\Device\HarddiskVolume3
fixed media
Mounted on \\.\e:
\\.\Volume{7cf2f59f-6207-11e1-b81a-806e6f6e6963}\
link to \\?\Device\HarddiskVolume4
fixed media
Mounted on \\.\f:
5、运行命令：dd if=a.iso of=\\.\h: