I have had the same problem.  Done all the steps to fix and still nothing.  Quickbooks Pro 2020.  Was working great until this new update.  How do I roll the update back?  I don't need something that does not work.

I am using windows 7 Pro, I know its not supported anymore.....   but again, it was working until Yesterday,  it has taken this long to get my PC running again after having to restore to an earlier time.  Please someone at quickbooks reply asap!