I just noticed this yesterday. I tried saving an image from a website on google chrome and nothing happened. I've tried downloading files from other websites and had the same result on Chrome. I switched over to microsoft edge and had the same result. I then tried internet explorer and the browser won't even open, it crashes on startup.
I've already tried resetting the network adapter/internet options/starting in safe mode/rolling back an update/reinstalling windows/etc....
Any help would be greatly appreciated.