You just need a word processing software like notepad(where you have to write the code)etc. and a web browser(e.g Microsoft Internet Explorer, Google Chrome etc.), both of which you get pre-installed in your laptop. So, there is no need to install Html.

Right-click on the page and pick "Save as", then select "Webpage, HTML Only". You can also press CTRL + S or Command + S on your keyboard. Another method is using the browser's inspector tool - find the sources tab, right-click the main file, and save it as an . html file.