Websites like DownloadMoreRAM.com are actually (parody sites). They "simulate" a download progress bar to poke fun at the idea.
Here’s the part most articles won’t tell you.
Many programs force themselves to run as soon as you turn on your computer. Disable the ones you don't need to free up memory from the moment you boot.
You can’t download RAM. It’s a physical object. If you need more memory, buy it. If you want a laugh, search “Download RAM” on YouTube.
They created fake "eXtreme RAM Booster" software that claimed to download more memory. In reality, these programs did nothing except show you a pretty graph that went up and down. Meanwhile, they filled your computer with spyware.
—a set of memory chips on a circuit board—that must be purchased and physically installed into your computer's motherboard pandasecurity.com Why You Can't "Download" RAM Hardware vs. Software: