How to delete environment variables in win7 system?

1. Right click on the desktop & ldquo; this computer & rdquo; select “ attribute & rdquo;;

2, on the left side of the "system" window, click “ advanced system settings ”;

3, in the "System Properties" window that opens, click the "Environment Variables" button;

4, will open the "Environment Variables" window. Note that the user environment variable is located above the window, and the system environment variable is located below the window;

5. If you want to delete an environment variable, first select the variable, then click the “delete” button . For example, if I want to delete the zxb user's TEMP (temporary file directory) environment variable, first select the variable, and then click the "Delete" button;

6. If you want to increase the environment Variable, click the “New...“ button, then write the variable name and variable value in the pop-up dialog box, and finally click “OK”;

7. At this time, the newly added The environment variables will appear in the corresponding window list.