Without having to restart your computer

Instead of running software directly from your hard drive, Windows temporarily stores some of the related data in your system memory. This gives you the advantage of speed: switching back to your software is faster, because it is much faster to access data in your system memory than on your hard drive.

Over time, however, this data can start to fill up your available memory. The larger the cache, the less free memory your PC has to perform other crucial tasks. Knowing how to clear the cache in Windows 10 can give you an instant speed boost if your PC is starting to slow down.

Your hard drive doesn’t need power to store your data. When you turn off your PC, your files are saved so you can access them the next time you boot up.