Hi Le. I'm Greg, an installation specialist and 9 year Windows MVP, here to help you.
In ten years daily in forums helping over 100,000 I've never seen ReadyBoost do much to speed things up. It's so much better to get real RAM instead if that's what's lagging when you examine Task Manager to compare RAM vs. CPU usage.
Run Crucial Memory Scanner to see what your RAM configuration and specs are and options for first quality discount RAM guaranteed for life: https://www.crucial.com/usa/en/systemscanner?cm...
ReadyBoost fixes here:
https://www.deskdecode.com/readyboost-not-worki...
I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
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