你试着用 备份恢复代理 的方式来做呢? winnt有这样的特性的 把现在的加密数据用backup备份一下 然后恢复时指派现在administrator 获取权限
Log on to the network as a Recovery Agent(administrator is the default RA). Decrypt the files for the manager
An encrypted file on an EFS partition can only be decrypted by the owner of file or by the Recovery agent.