First of all, you replied to your own post, which took you out of the unanswered queue. Next time, please edit your post and do not bump it.
Secondly, it's not uncommon for people to wait a lot longer than 4 hours for a first response. Keep in mind that we are all volunteers here, and also have a life outside these forums.
Now please answer some questions for me:
Was this system upgraded? If so, from W7 or W8?
What steps have you taken so far? (besides a reset)
Have you tried turning off Fast Startup
Have you removed all HP Bloatware, especially the stuff leftover from before the upgrade?
What AV are you using?