We have been having this same issue - the problem started the same time that we received an email about the browser security issue within Quickbooks in early June. The solution it was to update the QB, so we did. Since then we have had this issue repeatedly.
I have done all the above solutions and it will still crash before opening the company file about 4 times out of 5.
This is obviously a big issue in this patch update and needs to be addressed right away
