Hi and welcome to Sysnative. Sorry for the delay.
First thing I would try is to disconnect any peripheral devices from your machine (i.e. any USB devices or anything else that is not absolutely essential), do a
Clean Boot and then try installing from a USB key like you were doing. Use the
Media Creation Tool to create the install media on a USB drive if you haven't already (not sure if you did DVD or USB) and try that. Make certain you are in a
Clean Boot state however.
Let me know how it goes.