I tried the QuickBooks Tool Hub, no success.  Went to the article you linked on troubleshooting steps, ran the QuickBooks Install Diagnostic tool, no success.  Also did PC Health Check, determined up to date on my Windows 10, but my PC doesn't meet Windows 11 system requirements due to processor not supported.  Tried to rename the QBWUSER.ini file but was unable to find it?  Did a search and still unable to find.  Is my processor the problem?  Something with QB update I received June 6?  I was using QB to do my payroll, sent payroll for processing per my subscription, program looked for downloads as usual, then I logged out.  Thirty minutes later, when I tried to login, program "crashed", closed immediately.