问题现象

1. 您安装了Bootable Media Builder和用于创建WinPE媒体的相应Windows AIK/ADK；
2. WinPE媒体创建失败，并出现以下错误：

   中文日志：
   用户试图挂载到非空目录，不支持此功能。  
   英文日志：
   The user attempted to mount to a directory that is not empty. This is not supported.
   

完整日志示例：

Code: 1.572.897(0x00180021)
LineInfo: 0xA0A7FA0A4449FBC7; File: e:\528\builder\lib\winpe_builder.cpp;
Function: WinPEBuilder::ProceedWithWIM; Line: 1.820;

Module: media_builder_vsa64_14330
Message: Failed to mount the source WIM image.

Code: 65.520(0x0000FFF0)
LineInfo: 0x4676E1DB2164CE5F; File: e:\528\builder\lib\wim_api.cpp;
Function: WIMGAPIMounter::MountWIMImage; Line: 157;

Module: media_builder_vsa64_14330
Fields: code: 0xc1420114
Message: The user attempted to mount to a directory that is not empty. This is not supported.

问题原因

用于存储临时安装的.wim映像的文件夹C:\Users\%username%\AppData\Local\Temp~MntWIM不为空。

解决方法

删除或重命名C:\Users\%username%\AppData\Local\Temp~MntWIM文件夹，然后重新尝试创建WinPE媒体。

原文链接：https://kb.acronis.com/content/64637