Many of the programs in the system uses lots of memory during operations. The processing speed of a system depends on RAM. For those systems which has low RAM this will be a nightmare. So to solve this problem use your pendrive or USB as a RAM.
Using pendrive as a RAM increases the system performance. It is not a difficult process you can easily do this with the help of the following simple steps.
1) Go to "My Computer" Select your Pen Drive in Removable device section and right click on that.
2) When you do a right click, a popup menu will appear. Select "Properties" from that menu.
3) Select "ReadyBoost" tab in the Property Menu.
4) After clicking on Readyboost, Select "Use this device" option.
5) When you click "Use this device", windows will automatically detect your pen drive’s space and recommends a proper memory for creating a virtual RAM.
6) You can change this settings accordingly (not Mandatory).
7) click on "OK" button and wait for some seconds.
8) Now your virtual RAM is ready for use.