Have you ever thought that you can use your USB pen drive as your computer's RAM? I will tell you how to do this. It is very very simple. The fact that it is so simple is because Windows 8,7 and Windows Vista both comes with a function called "ReadyBoost" which allows us to use our USB as System Virtual Memory. There is nothing much to do here. Just insert the Formatted Pen drive, Select Properties and go to the "ReadyBoost" tab, from there select "Use This Device", select the maximum memory available and click on apply. this ought to make it as a virtual system memory.