一旦锁定，受保护的文件将不再明显，从其他地方访问。

Once locked, the protected files will no longer be visible and accessible from anywhere else.

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当进程需要打开一个受efs保护的文件时，系统将对凭据进行测试。

When the process needs to open an EFS-protected file, the system tests the credentials.

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当以后进程需要读写受efs保护的文件时，使用这些密钥。

These keys are used later when a process needs to read or write an EFS-protected file.

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