Note: Before you consider following this guide, please read this to understand what Superfetch is.
Windows Vista Superfetch learns your typical activities with files and application access. By learning, it predicts your computer use actions and puts your most commonly used applications in memory. This is great if you have a lot of RAM, but if you have less than 2GB, then I suggest you disable this feature — saving you from sluggish computer use.
Please Note: Even with less than 2GB of ram, you may find this doesn’t help. If you notice no difference after a day or two, then you can probably re-enable Superfetch.
Disable Windows Vista Superfetch
1. Press Start, type services in the search bar and press Enter
2. Locate Superfetch in the list of services, right click it, and select properties.
3. Change the Startup Type dropdown box to disabled and click the stop button.
4. Now click OK.
Please remember, this will only help if you have less than 2GB of RAM.