Use Pendrive as RAM

Nowadays, many programs take lots of memory during operation, which is a nightmare for low RAM systems. So to avoid this make your pen drive/USB of large size as RAM, which will allow your system to handle more operations and tasks. That allows you to boost your computer speed. It may increase your computer processing speed.
Now follow the simple steps in your windows 07.

Transcend 4GB DDR3L 1600 LAPTOP RAM

SanDisk Cruzer Blade SDCZ50-016G-I35 16 GB USB 2.0 Pen Drive

1. Insert your pen drive 
2. Format it 
3. Right click on your pen drive and click on "Properties".
4. Click on 'Ready boost' tab and then on 'Use this device'
5. Choose maximum space to reserve system speed and hit OK

Great! You're done! Now use your pen drive as RAM
enjoy!!!