My machine runs Windows 64 bits. I have multiple IDEs installed (eclipse, intelliJ, qt creator, visual studio) and I daily run some work applications that use java (vpn connector being the most important one). Usually, when I get a java update notification I just accept and everything runs smoothly, but today I found that Eclipse is not starting because of exit error 13, which I read is caused by 32-bit/64-bit conflicts between Eclipse and Java. When I checked my java installation folders, I found out I have multiple folders, both for 32 bits and 64 bits:
I'm not even sure how those JRE folders ended up there, since I only download the JDK when I have to. Maybe they are the JRE installed with JDK but not sure.
Anyway, this is my 32-bit JAVA folder:

And this is my 64 bit-JAVA folder:

How can I get rid of all of those safely, download and install the latest JDK afresh and have everything running smoothly?
Thanks :)