You need to validate if you have a 32 bit java version installed. Check the path of the java installation, if it is something like
C:\Program Files (x86)\Java\jre1.8.0_151 it is ok, but when it is something like
C:\Program Files\Java\jre1.8.0_151, you need to go to java.com and install a 32bit version of java. Download the
Windows Offline version (not the Windows Offline (64-bit)).
I'm using the same JRE with AOO 4.1.4 on W7(64bit) without any issue.