Enable or disable the Windows Superfetch (otherwise known as Prefetch) feature.
Superfetch caches data to RAM so that it can be immediately available to your application. Sometimes this can affect the performance of certain applications. It tends to not work well with gaming, but can improve performance with business apps.
To modify whether Superfetch is enabled or disabled, you can perform the following steps:
1. Click the Start orb and type REGEDIT in the Start Search area.
2. Open the Registry Editor.
3. Click the plus sign next to HKEY_LOCAL_MACHINE
then Session Manager
then click PrefetchParameters
4. On the right side, double-click on EnableSuperfetch
5. Give it one of the following values:
0 to disable Superfetch
1 to enable prefetching when program is launched
2 to enable boot prefetching
3 to enable prefectching of everything
6. Close the Registry Editor.
Note: If you disable Superfetch and would like to enable it for certain applications, you can use special switch in the program shortcut: /prefetch:1