使用Windows 7 USB/DVD Download Tool时,提示We were unable to copy your files. Please check your USB device and the selected ISO file and try again无法继续,在网上找了找,以下是解决方法. 插上要U启的U盘后 运行 diskpart list disk //列出磁盘 select disk X //X表示磁盘号 clean //清理 create partition…