Cannot Update from Preview 17074; Crashes then reverts, 0xC1900101

So I got:

Code:

Matching Profile found: FindSetupHostReportedFailure - 6253C04F-2E4E-4F7A-B88E-95A69702F7ECError: SetupDiag reports down-level failure, Operation: Finalize, Error: 0x800700C1 - 0x5001

Edit: Actually this was only the most recent upgrade attempt. It didn't mention the previous ones which did go a bit further

Edit: I fixed it! Turns out that somewhere along the line verifier was re-enabled which was likely causing the verification errors doh! But now it works for now. Ty all for the help! Y'all are the best!