Registry key Error: Java version has value ‘1.8’, but ‘1.7’ is required

After trying more than hundred of tricks, finally got success.

I removed all java.exe, javaw.exe and javaws.exe from my

1. Windows\System32 and

2. Windows\SysWOW64
   folder. [Try step 2 if you have x64 system (Win 7 64 bits)]