Windows system recovery system default environment variable graphic tutorial

Then it is very likely that the environment variables in my computer have been modified incorrectly, or the environment variables in the computer have been modified to cause such a situation. We only need to modify it back. (MMC in the Group Policy Editor cannot create a snap-in error.) Right-click the property in the My Computer icon to bring up the System Properties window shown in Figure 1. (Several ways to open system properties!) Then find the Advanced Selection Card in the System Properties window, find the Environment Variables button in the Advanced tab and click Open. As shown in Figure 1 below (the environment variable in the system properties of Figure 1) in the pop-up environment variable window, find the box under the system variable (S) and click to select the Path variable name, then click the edit (N) button . (Figure 2 computer environment variable modification) After selecting the variable named Path edit, the window shown in Figure 3 will appear as the variable value is copied out and then modified to: %SystemRoot%\\system32;%SystemRoot%;%SystemRoot% \\System32\\Wbem Tip: Do not enter the drive letter or something, this is the variable value of the ordinary computer. If some of the service software installed in the computer, there may be more, such as the configuration of the mysql database in the computer, configured php or java, etc., there may be more here. For details, refer to the configuration of these files and add them up. These configurations are beyond the scope of this article. To make a small demonstration: This configuration is the configuration of the database where mysql is installed. mysql is installed on the c drive. %SystemRoot%\\system32;%SystemRoot%;%SystemRoot%\\System32\\Wbem;C:\\mysql5.5\\bin;C:\\mysql5.5\\bin (Figure 3 Edit System Variable Values)