Author: Logan
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FixCard: “You can’t install Windows on a USB flash drive using Set-up.” – Windows 11 upgrade fails with “can’t install from USB” (even when you didn’t use a USB)
The simple fix: Credit: Upgrade to Win11 failed, says can’t install from USB – Microsoft Q&A Summary Quick Win (5–7 minutes) Deep Clean (15–20 minutes) if it still fails Prevent It Again Stop if… Why this works (plain English) Optional: command‑line way (advanced) FAQ Read more