Article: Your flash drive or hard drive should plug into one of your computer's USB slots.  On a laptop, USB slots are generally on the sides of the laptop's housing. On a desktop, you'll usually find USB slots in the front or back of the CPU box, or on a peripheral such as the keyboard. Click the Windows logo in the bottom-left corner of the screen. Click the folder-shaped icon in the bottom-left side of the Start window. It's on the far-left side of the File Explorer window. Click the name of the USB drive that you attached. It will usually have an "F:" designation if it's the only external storage attached. It's a tab in the upper-left side of the window. A toolbar will appear just below the Computer tab. This white box with a red checkmark on it is on the far-left side of the toolbar. The flash drive's Properties window will open. It's at the top of the Properties window. You'll see this in the middle of the page. Doing so will allow Windows to use the maximum space available on your flash drive for RAM.  You won't be able to use more than your computer's maximum RAM capacity. You may have to wait a few seconds for ReadyBoost to display the flash drive's information. These are both at the bottom of the window. Doing so will save your settings and apply the USB drive's free space to RAM usage. Once you unplug the USB drive, you'll need to go back into the ReadyBoost menu to set it up as RAM if you decide to use it as RAM again.

What is a summary?
Plug your USB drive into your computer. Open Start . Open File Explorer . Click This PC. Select your USB drive. Click Computer. Click Properties. Click the ReadyBoost tab. Check the "Use this device" box. Click Apply, then click OK.