Java RunTime Environment was not found. Oracle Universal Installer cannot be run

I was having some trouble while uninstalling the Oracle_ECM1 from my Windows system. In such a case, we need to use the command prompt and pass -jreLoc parameter as follows:

C:\Users\sonal_chaudhary>cd C:\Oracle\Oracle_ECM1\oui\bin\
C:\Oracle\Oracle_ECM1\oui\bin>setup.exe -deinstall -ignoreSysPrereqs -jreLoc C:\Java\jre7