For reference, I will say that I have found Qubes-R3.2-x86-64 is very usable when installed on a Sandisk extreme (USB3.0) 64GB memory stick. I created a boot USB on an 8GB Netac stick, booted on that. I then installed qubes on the larger and faster Sandisk, encrypting it with a passphrase. LibreOffice installed and ran fine. More @Wikipedia
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