Win8 command prompt CMD command invalidation problem resolution

Win8 command prompt CMD command invalidation solution is as follows: After entering the command prompt state, no matter what DOS command is executed, the prompt: "quote XX is not an internal or external command, nor is it runnable The program or batch file ", the reason is as follows: This problem is some software modified PATH value Lenovo Genuine OEM. Steps: 1. Find the “Computer” icon on the desktop and click the right mouse button, and select “ldorts” in the pop-up menu. 2. Click on “Advanced System Settings on the left side. 3. In the pop-up system properties dialog box, click the <quo;Environment Variables” button. 4. Find the variable <Path” and click the “Edit” button. 5. Modify the variable value to “%SystemRoot%\\System32;%SystemRoot%\\System32\\WindowsPowerShell\\v1.0\\”, and finally click the <;OK” button to end the setting. 6. Restart your computer. Windows 8 is the latest Windows series system launched by Microsoft at 23:15 on October 25, 2012 in Beijing. Windows 8 supports PCs (X86 architecture) and tablets (X86 architecture or ARM architecture). Windows 8 dramatically changed the previous operating logic to provide better screen touch support for win7 Ultimate system downloads.