Solve the Problem of DOS command prompt invalidation in Win8 System

Solve the Problem of DOS command prompt invalidation in Win8 System

The doscommand prompt is a function that we often use when maintaining the system. It can be said that it is very important to the system, especially when the system encounters some serious problems, in general, we can solve the problem at the doscommand prompt.

Today, when ghost win7 tests the network connection at a command prompt, it suddenly finds that no matter what command is entered, it will prompt "not an internal or external command, it is not a runable program or batch processing file. "All commands at the command prompt are invalid! What's going on?

1. Open the traditional desktop, right-click the computer, and select Properties.

2. on the left-side control panel homepage, select Advanced system settings.

3. Select environment variables.

4. Find the variable Path and select edit.

5. Change the variable value to "% SystemRoot % System32; % SystemRoot % System32WindowsPowerShellv1.0", save and exit, and restart your computer.