The CHKDSK command is used in the Command Prompt of Windows version 7/8/10/11. The CHKDSK command was also available on Windows 2000/XP by using the recovery console.

Repeat this process to interrupt the boot sequence three consecutive times. On the fourth attempt, Windows will load the recovery menu. Once it does, click Troubleshoot and then select Command Prompt.

If the \bin directory of the JDK or JRE is not added to the Windows or Linux PATH variable, programs may not be able to find it at runtime. This would certainly cause the “Java not recognized” error, ...