Nowadays, programs often require a lot of memory to function, which is a nightmare for systems with little RAM. To avoid this, you can use a USB stick as an extension to the RAM, to give your system the ability to handle more operations and tasks. To do this, follow the steps below.
Steps
Method 1 of 2: Using a USB flash drive as RAM in Windows XP

Step 1. Completely empty the USB stick (minimum 2 GB)
Plug it in and wait for the PC to recognize the stick.

Step 2. Right click on My Computer
Click Properties in the context menu

Step 3. Click on the Advanced tab

Step #4. Click Settings under Performance

Step 5. Click on the Advanced tab

Step 6. Click the Change button under Virtual Memory

Step 7. Select your USB stick

Step 8. Click the Custom Size radio button and enter the following values:
- Original size:1020
- Maximum size:1020
- The size depends on the available memory of your USB stick. You can therefore adjust this value to the capacity of your USB stick.

Step 9. Click the Set button, then OK

Step 10. Restart the computer with the connected USB stick (so do not remove it)
If all goes well, your computer will have speeded up a bit.
Method 2 of 2: Using a USB flash drive as RAM in Windows Vista, 7 and 8

Step 1. Insert the USB flash drive and format it

Step 2. Right click on your USB stick and click on "Properties"

Step 3. Click on the 'Ready boost' tab and then 'Use this device'

Step 4. Choose the maximum amount of space to make the system faster

Step 5. Click OK and then Apply

Step 6. You're done
You can now use your USB stick as RAM.
Tips
- To do this you must be logged in as Administrator.
- If you are using Windows 7, follow steps 1 and 2 first, but then another window will open. Click on 'Advanced System Settings' in the side bar and proceed with the settings.
ReadyBoost allows you to use a USB drive as RAM, but it will not increase the physical amount of memory (RAM). It also doesn't make sense to use ReadyBoost to make gaming faster, but it will help Windows run slightly faster
Warnings
- This can greatly reduce the life of your USB stick. USB sticks can generally be written a limited number of times. With normal use, it takes a very long time before the stick becomes unusable. But if used as RAM with data transferring millions of times per minute, the life of the USB drive will be noticeably shorter.
- Do not remove the USB or your system will crash. You can resolve this by reconnecting the USB drive and restarting the computer.