when PC is able to POST (can show and finish Dell logo screen) but can not boot into Windows, there are two schools of thoughts of a good remedy.  One school is into recovery repair.  the other is into a quick surgical cut of Godian knot by doing a clean install of latest Win 10 (and wipe the hdd/lose all old data).  if you have time to ponder and play around and enjoy that sort of things then the first school is more appealing.  if you just want to get it over with and do not mind starting w a clean slate then the second way is simple and fast.
Dell XPS 8700 with the i7-4790. Good specs for gaming and upgradable still. First problem in at least over 5 years. Now getting error message 0xc0000098 and it won’t boot into Windows 10 anymore. 🤦‍  Thank you for any help you can give. I already tried scans, diagnostics, etc.  The ePSA Pre-boot System Assessment says all is good?
XPS 8700, boot issue, error message 0xc0000098