You can't download more RAM, but you can increase how much is available.

WTF?! Now you can bypass your hard drive and store your whole operating system in your VRAM (should you want to). Well-known Windows modder NTDEV has demonstrated how, and it's surprisingly painless.

Are there any circumstances under which Windows can, without any intent on a user's or admin's part, remove the page file (i.e. set the virtual memory dialog to "No paging file")? Backstory: a little ...

The portion of a computer’s RAM that is used by a hardware device such as a GPU (Graphics Processing Unit), sound card, network adapter, and other hardware components is known as Hardware Reserved.