Slow boot up (High-end PC): HP logo shows, black screen, HP logo again

I have a relatively good PC but I do not think it is a hardware problem. So when I turn on my computer the HP logo shows up in normal timing (so is this not a BIOS problem), it sits on the HP logo for about 3-5 minutes, screen goes black for about 15 minutes, HP logo comes back for about 2 minutes then I get an orange windows 10 colour theme saying "Please wait" and the lock screen comes up ready to log in, after this everything is normal, basically its very slowing getting to the lock screen.

A few specifics i've noticed, my mouse has LEDs this turns on and off about 4 times around the second HP logo appearance. The lock screen is usually synced to my laptops lock screen, and it changes reguraly however it is not anymore and does not change either, its a picture of a Medevil Iron Helmet (which is quite spooky, I havent bothered to change it or see if this is a picture from Microsoft).

Yesterday I was also about to do a safe-mode boot but the computer turned off, I did however leave my computer untouched for at least 5 minutes but it wasn't a shutting down screen it just turned off. I also doubt it is to do with cooling as I can still play games without any problems.

UPDATE: In my start-up processes there is a file name called Program, no publisher, start-up impact isn't measured but it is enabled, when I right click I can only Disable it or search online. How can I find its file location so I can remove it?

Since the post I have go into safe mode, when I load in it say this app can't open: "Tips can't be opened using the Built-in Adminstrator account, try again." Also there was 0x80070422 error when I tried turning on Windows firewall, also security center cannot open either. My wifi was also not connecting, when I tried changing the network settings it didn't list anything, more I go into it im finding more problems.