System requirements web page (https://www.libreoffice.org/get-help/system-requirements/) mentions that Java is required for certain features. In Windows section, it should also mention that Java bitness is required to match LO bitness. Possibly we could also put a direct link to Java site with bitness choice (but the latter is additional burden to keep up-to-date with external site's possible changes). That may help to lower the endless frustration of users that don't realize that bitness requirement.
Please report this at https://redmine.documentfoundation.org/projects/infrastructure/