increase your RAM using pendrive.

How to speedup your PC with help of flash dive or Pen drive.(only for use in window7) 
1.first enter Pen drive in your pc.  

2. format as exfat or fat.

3.go to property of pen drive.   

4 choose ready boost .  

5.choose according to your useage. 

6.apply this.  

7.this shows your disk as full . 

note this technique is use as virtual memory.  try it !!! and send feed back