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#11
Are you always using the same USB flash drive? If so, try a different one. How big is it? If it's large, like 128GB, use a smaller one, 16GB or so. If that doesn't help then:
Does the system still boot. If so you could do a Reset which is pretty close to a Clean Install. It removes everything effectively leaving you with a new install.
See this tutorial by Shawn Brink:
Reset Windows 10 | Windows 10 Tutorials