I have a problem my website doesent update once i do something to it like upload new content to the style.css or add something new to the html files. And no i dont use any plugins + i got to another computer and its still the same
Have you tried clearing Browser cache and flushing DNS?
Do you use caching plugins? Maybe WP Super Cache?
Do you use CDN? Cloudflare maybe?
If yes, then purge their caches.
If problem still exists then you may try telling us some details like plugins you use or like if you are creating child theme then which codes have you added or tweaks you have made?
Click shift+F5 to fully refresh the page