Looking an inexpensive way to give your Windows 10 computer a boost in performance? Do you have a USB flash drive and a spare USB port on your computer? Then ReadyBoost in Windows 10 might be a perfect solution.
If you have never heard of ReadyBoost, it is a program that caches files that are frequently used by Windows 10. It stores the cached files on USB flash drive(s) or SD memory card.
ReadyBoost utilizes a service called SuperFetch. SuperFetch uses an algorithm that determines which files should be stored in the cache. The cache can include system files, application files and user documents.
Now when those files are needed, instead of reading the files from the disk drive, they get read from the ReadyBoost cache instead. If a file gets changed on the disk drive, it also gets changed in the cache and visa versa.
Now it is recommended that you use only USB flash drives for ReadyBoost for desktop computers. It can be connected to either a USB 2 or USB 3 port, but a USB 3 port is recommended. But you can use an SD memory card for a laptop computer, as long as it has a fast-enough transfer rate.
And you can use more than one (1) USB flash drive for ReadyBoost. In fact, the recommended ratio between the ReadyBoost cache and system memory is 1:1 to 2.5:1.
So, if your computer has 8GB of memory, you could create a ReadyBoost cache that is between 8GB and 20GB. But you could just use a 32GB flash drive and allocate all of it to ReadyBoost.
The one thing you need to know is ReadyBoost is mainly meant to be used with systems that only have Hard Disk Drives (HDD), since they are known to have slower read access times than Solid State Drives (SSD).
Now to make sure that your computer is ready to use ReadyBoost, you will need to make sure the SuperFetch (Windows 10 version 1803 or earlier) or SysMain (Windows 10 version 1809 or later) service is running. To check the status of the SuperFetch / SysMain service just follow these steps:
You are now ready to set up a USB flash drive or SD memory card for use with ReadyBoost. Just insert the drive into a spare USB port or SD card slot and follow the instructions below.