出现无法复制文件异常，这就是由于Windows安全资料库损坏所致。可用Esentutl.exe进行修复，
查看它的用法，用下面指令： esentutl /? 会显示如下提示：
C:\Documents and Settings\Administrator>Esentutl /?
Microsoft(R) Windows(R) Database Utilities
Version 5.2
Copyright (C) Microsoft Corporation. All Rights Reserved.
DESCRIPTION: Maintenance utilities for Microsoft(R) Windows(R) databases.
MODES OF OPERATION:
Defragmentation: ESENTUTL /d <database name> [options]
Recovery: ESENTUTL /r <logfile base name> [options]
Integrity: ESENTUTL /g <database name> [options]
Checksum: ESENTUTL /k <database name> [options]
Repair: ESENTUTL /p <database name> [options]
File Dump: ESENTUTL /m[mode-modifier] <filename>
<<<<< Press a key for more help >>>>>
D=Defragmentation, R=Recovery, G=inteGrity, K=checKsum, P=rePair, M=file duMp
可见，检查资料库的完整性，要用/g，比如： esentutl /g C:\Windows\security\database\secedit.sdb
若要修复这个Windows安全资料库，用如下指令： esentutl /p C:\Windows\security\database\secedit.sdb
解决方法：esentutl /g C:\Windows\security\database\secedit.sdb
esentutl /p C:\Windows\security\database\secedit.sdb