Hey gang, recently released a game onto here that I've been working on for quite a while but because I'm using gamemaker it had trouble with the touch controls in HTML so I had to release it for windows download. It's been up for about a month and has 9 downloads but in the first 2 days it got 30-40 views and 1 download. As HTML games seem to do better is it acceptible for me to reupload (or make a new copy called [Game name] HTML version) to help it get flowing again? I completely understand if this is ethically wrong though, I just don't think anyone will see the HTML change if I add it to a game that's been out for a month already.

The quality guidelines advise against it. You can always post a "major release" devlog, a new release announcement and so on. Besides, people search by platform, so they do notice, and you should do your own promotion anyway, on social media for example, instead of relying on the itch.io search box.