VMware在win7下用U盘做虚拟硬盘，启动winpe为什么弹出错误

看见你提出的这个问题，好像你已经解决了，能请教一下是如何解决的吗？
弹出
Operation on file "\\.\PhysicalDrive1" failed.
If the file resides on a remote file system, please make sure your network connection and the server where this disk resides are functioning properly. If the file resides on removable media, reattach the media.
Choose Retry to attempt the operation again.
Choose Abort to terminate this session.
Choose Continue to forward the error to the guest operating system.
求高手
或者还有什么办法在win7下不用光盘安装