This is because the service causes increased system load and significantly more hard disk requests.
On Windows 10 PCs with normal hard disks it may make sense to deactivate SuperFetch in some rare cases. This means you don’t have to worry about the lifetime of older SSD drives because of ongoing SuperFetch-requests. In this respect one could actually switch off the service.īut Windows 10 already does this automatically for Superfetch if an SSD is installed as system drive. It IS true that Prefetch and SuperFetch won´t provide a huge advantage for starting applications from SSD drives, as they are fast anyway. To achieve this, the prefetch algorithm tries to anticipate when data most probably won´t be available in cache to directly load it from the respective drive. This data is located in C:\Windows\Prefetch.Ĭontrary to many blog posts, disabling Prefetch and SuperFetch for SSD drives is actually unnecessary.
Prefetch is a similar feature which was introduced already with Windows XP that gathers data about programs to also help them start faster.
