Using ReadyBoost with a flash drive in Windows Vista/7/8.1/10 to improve performance
Using the ReadyBoost feature available in Windows Vista/7/8.1/10 with a USB 2.0 or USB 3.0 flash drive can improve its performance. Windows uses the drive as additional memory, which is helpful if, say, a laptop has as much memory as it supports already installed. Windows 10 not only supports ReadyBoost, you can plug in as many flash drives that are fast enough to support it and Windows 10 is able to use all of them as additional memory.
Each drive must have at least 1.32GB of free space, a data-transfer speed of at least 3.5Mbits/sec, and support USB 2.0 or 3.0, which most flash drives and PCs are able to deliver. The recommendation for peek performance is to use drives with at least twice the capacity as the amount of system RAM memory and preferably fours times system memory. If the system uses a 64-bit version of Windows 7/8.1/10 and has 4GB memory installed, use flash drives with between 8GB and 16GB free space. It is possible to set the amount of space that you want ReadyBoost to use on a particular drive.
ReadyBoost in Windows 10 –
“Windows ReadyBoost introduces a new concept in add-on system memory. You can use non-volatile flash memory devices, such as universal serial bus (USB) flash drives, to improve performance without having to add memory “under the hood.” The flash memory device serves as an additional memory cache — that is, memory that the computer can access much more quickly than it can access data on the hard disk drive.”
ReadyBoost – http://en.wikipedia.org/wiki/ReadyBoost
Turning ReadyBoost on or off for a storage device [Windows 7] –
How to use ReadyBoost to Speed up your Windows® 8.1 computer-
The USB flash drive has to be able to read and write data fast enough to be able to use ReadyBoost. If the drive is too slow the ReadyBoost tab won’t appear.
ReadyBoost tab does not appear in Windows 8 Pro –