How to Add More Memory With My Flash Drive

By Ruri Ranbe

Use ReadyBoost and your USB flash drive to improve your PC's performance
i flash drive image by Antonio Oquias from

Increasing your system's RAM can considerably improve a computer's performance. Windows ReadyBoost allows users to temporarily increase their system's memory without adding physical RAM to the interior of their desktop or laptop computers. ReadyBoost uses the disk cache on the USB flash drive, rather than on the internal hard drive, to increase system performance, as random disk reads are significantly faster with flash memory than with an internal hard drive.

For the best performance, your USB drive should be at least one gigabyte in size and it should have at least 512 megabytes of disk space available.

Step 1

Click "Start," then "Control Panel." Select "Control Panel Home" from the menu on the left panel. Click "Play CDs or other media automatically."

Step 2

Confirm that "Use AutoPlay for all media and devices" is checked. Click "Save."

Step 3

Insert your flash drive into a USB port on your computer. Select "Speed up my system using Windows ReadyBoost" from the list of options.

Step 4

Click "Use this device" on the "ReadyBoost" tab. Slide the tab to the left or to the right to decrease or increase, respectively, the amount of disk space to use toward memory.

Step 5

Click "OK." Windows will use the space reserved on the flash drive as extra memory.