'java' is not recognized as an internal or external command

ADDITIONAL SYSTEM INFORMATION :
Windows 7 Professional Service Pack 1 64 bit JDK 11

A DESCRIPTION OF THE PROBLEM :
I have installed jdk 11 on windows 7 machine and have given JAVA_HOME in system variables. After that also java not recognized in my command prompt.

REGRESSION : Last worked in version 8u172

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
I have installed jdk 11 on windows 7 machine and have given JAVA_HOME in system variables. After that also java not recognized in my command prompt.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
on entering java -version it should return java version.
ACTUAL -
'java' is not recognized as an internal or external command

FREQUENCY : always