error downloading and installing Java. Running windows vista?

Answer 1

Vista is long obsolete, I didn't even think Oracle would have a recent JRE or JDK for that.

Answer 2

Newest Version of JAVA will not run on Obsolete Operating Systems.

Answer 3

Currently (2019) Vista is totally unsupported by Microsoft as well as other software providers and will give you error after error. 

Answer 4

Any version of Java 8 requires Vista SP2  

Download an older version of Java for Vista

https://www.oldapps.com/java.php?system=Windows_Vi...