Your RAM does not go anywhere, but is only used by programs. As you close programs, the ram the programs was using becomes available again. If your computer is running slow, try cutting off or uninstalling unneeded programs. The more you have running at any given time the slower your computer will be. If the programs that use up all your ram are on your startup list go to < Start - All Programs - Startup > and remove the programs that you do not want starting with windows. They will still be on your computer so if your have no need of them at all, uninstall them to help increase speed.
You might have a bug on your computer or maybe you don't have a big enough hard drive or enough RAM, if you try deleting a few programs that you no longer use maybe it might increase the speed.
Of course, but this will depend on how much RAM you have and how big the programs you are using are. Obviously bigger programs such as Video editing will take up more RAM to have it running. If you overdo it though and use most of your RAM up with many programs at once you will notice a slow down in your computer speed. There are many different sizes of RAM that you can buy to be able to run whatever programs you need
Random Access Memory - used to give your computer faster speed when using more complex programs
When you have a program or a document open, you are using RAM, or "working memory." Putting a large amount of data on a clipboard (copy/paste) will also decrease your available memory. Closing the programs, clearing the copy/paste will restore your RAM in most cases. Some programs do not release all of the memory, so you may have to reboot your computer to reclaim the RAM.
When you install programs they go on your hardrive not your RAM. So the answer is no.
Yes, RAM is important because it eliminates the need to "swap" programs in and out.
ram
The computer's Random Access Memory (RAM) temporarily stores data and programs while your computer is on.
Page file
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Hiberfil.sys is pretty much a hibernation file. It stores the info that it needs to start back up again. Its just in the name. Pagefile.sys acts as an extra ram if the ram is already full. I would not recommend deleting any but you may be able to delete hiberfil.sys