Win7 running cmd command prompts "Windows can not find files" reason and solution

  
            Solution steps:
1, we first prepare a U disk, insert the U disk into the same version of the system can run the cmd command computer;
2, open "ldquo; computer" in the computer, and then open "ld" ;C:WindowsSystem32”, find “cmd.exe” in this folder, and copy it, paste it through the USB disk to the directory where you can't run the cmd system, “C:WindowsSystem32”.
3, after copying, we can run the CMD command again to open normally.

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