What is Service Host Superfetch?Service Host Superfetch is a feature introduced and used first from Windows Vista. So what does Superfetch do? This feature helps to manage and improve the speed of the system continuously and efficiently. Until Windows 10 system, this feature still exists.
Superfetch runs in the background, automatically analyzing your computer’s RAM usage and knowing which applications you use frequently. After a while, it will mark the application as a “familiar application” and save the RAM application (preloading). The goal is that when you start executing the marked application, it will be faster because it is already stored in RAM.
Don’t worry that Superfetch is taking up all the RAM in your device to save “familiar applications” because it only stores unused RAM.