

Technically, Windows treats Superfetch memory usage as a low priority. Superfetch is a Windows feature designed to help this by automatically loading certain application data into your system memory. Windows tries to improve system performance by analyzing how you use your PC and predicting your actions.

By occasionally rebooting your PC, you can quickly clear the cache in Windows 10 and give yourself an immediate speed boost.

While it’s true that Windows 10 is far better at being left powered up than previous Windows releases, your data cache is going to grow the longer it runs without a restart.
