I am having this error when I run Node.js v4.2.3 installer. I previously had Node.js v5.2.0 stable. I decided to go to lower version for some reason. I completely removed Node.js v5.2.0 completely as indicated here.
Now when I run the installer for v4.2.3, it says I have later version installed already. But no signs and trace of node in my computer.
Any ideas what else I might have missed? Thank you!