Some of you may know you can do this, some of you don't.
This method works, but not very much.
What we're going to be doing is using the ReadyBoost feature in Windows.
Unfortunately, windows XP doesn't have ReadyBoost.
This is for Windows Vista, and Windows 7. ( I don't know if it's on Windows 8, but I'd imagine so. )
First thing you want to have is a USB flash drive.
Plug your flash drive in and navigate to it.
Like so:
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We will be using Removable Disk (F

for this tut.
Right click on it, and you should get some options like this:
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Choose Properties and this will come up:
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Select the ReadyBoost tab, and you will have these options:
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Select Dedicate this device if you want the entire flash drive to be used, or select the amount of space you want to be used.
this gives your PC a bit of a boost and runs a little easier.
Its not real ram. But it helps!