通过将Windows恢复到以前的状态来解决

消息(系统找不到指定的路径.)显示...

1)当我打开新的CMD(Win + R => cmd)时.它从介绍开始.(第3行)

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
The system cannot find the path specified.

C:\Users\ViliamKopecky>

2)当我执行某些命令cmd /C dir(或(cmd /C php -v或其他))时(第2行)

C:\Users\ViliamKopecky>cmd /C dir
The system cannot find the path specified.
 Volume in drive C is Windows7_OS
 Volume Serial Number is 8230-1246
...

C:\Windows\System32>cmd /C php -v
The system cannot find the path specified.
PHP 5.4.8 (cli) (built: Oct 16 2012 22:30:23)
Copyright (c) …