The SuperFetch service in Windows Vista preloads your system’s memory with the applications that you use most often. Superfetch feature, in theory helps you because it will ‘learn’ your typical activities in terms of file and application access, then preconfigure the most commonly used apps in its memory on startup, making them much faster to access. But in practice, this works only on computers with more of 2GB of memory. If you have less than 2GB of physical memory this will leads to a lot of disk thrashing and sluggishness.There’s no hard evidence that enabling or disabling this service will increase performance in general, but if you open and close applications often you should definitely leave it alone.It tends to not work well with gaming, but can improve performance with business applications.Sometimes this can affect the performance of certain applications. If you are not happy with the startup speed of your Windows Vista machine, try disabling the Superfetch feature.
Steps to Disable Superfetch Feature in Windows Vista:
- Go to the Windows Vista ’start’ menu and type ’services’ in the search bar. Hit Enter.
- In the services window, scroll down until you reach the ‘superfetch‘ service. Right click and choose ‘properties.’
- Change the ‘startup type‘ dropdown box to ‘disabled‘ and click the ’stop’ button to stop the service.
- Hit ‘OK’.
You can also disable Superfetch feature in Windows Vista by a simple registry tweak:
- Click the Windows Vista Start orb and type REGEDIT in the Start Search area.
- Open the Registry Editor.
- Navigate to the registry key: HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Session Manager/MemoryManagement/PrefetchParameters
- On the right side, double-click on EnableSuperfetch
- Give it one of the following values:
0 to disable Superfetch Feature on Windows Vista
1 to enable prefetching when program is launched
2 to enable boot prefetching
3 to enable prefectching of everything
- Click OK and close the Windows Vista Registry Editor.
- Reboot your computer.
Note: If you disable Superfetch feature in Windows Vista and would like to enable it for certain applications, you can use special switch in the program shortcut: /prefetch:1
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