for those who come upon this short thread, i have solved my PS launch problem.
Anti virus software.
at the very first launch of PS CC 2018 after the update/install, my anti virus software quarantined the adobecrashreporter file which PS apparently needs to continue launching so the app would stop launching.
so i shut off the anti virus, uninstalled PS, re-installed it, launched PS (which worked!!) then turned back on the anti virus software and now it all works