Hold the Shift key when clicking the delete button to permanently delete a file.

按住shift键的同时点击删除按钮可以永久删除文件。

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For example, if a gadget attempted to delete a file in the System32 directory, the delete operation would not succeed and no elevation prompt would be shown to the user.

举个例子，如果Gadget试图删掉System 32系统目录中的一个文件，虽然此操作会失败，但不会给予最终用户任何提示。

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To delete or rename a file, you must have either delete permission on the file, or delete child permission in the parent directory.

欲删除或重命名一个文件，你必须具有文件的删除权限以及父文件夹的子操作权限。

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Look for a line in the file containing mscdex.exe and delete everything up to it, so that the line begins with mscdex.exe. (You can remove all subsequent lines from the file, too.) Save the file.

CNN: Top 50 Windows tips