As many users know, Windows uses RAM to store every program, services or libraries ran.
If you have not more than 2GB of RAM, you may notice that your computer tends to be so slow most of the time.
In Windows 7, there is a feature called Superfetch which pre-recorded the RAM for often used programs!
If you have so little RAM and wish to make your PC ‘breathe’ a bit easier, all you need to do is disable Superfetch.
Go to Control Panel-Administrative Tools-Services. Look for Superfetch, choose Properties and set it to Disabled in Startup Type! Click Apply-OK and restart.
For details and screenshots, read the article by Michel Leiva-Gomes on MakeTechEasier