I used BootRacer and also timed it manually, the 85 seconds measurement was correct.
Anyway, I fixed the problem by doing a repair install of Windows 10, while keeping my apps and files. Now it's...

Done. What should I look for?
UI Delays? Boot phases?
Weirdly, it shows the session init phase taking just 7 seconds, while it actually takes 85-86.
Edit: Here's a screenshot of its results:...

Again, that test is concerned with startup time after login, my problem is slow boot before login. They're unrelated.

Hi. It's not a startup application that's causing this. Applications start up after you login, the delay I'm talking about happens in the loading screen even before the login screen.
See here: ...

I have Windows 10 with the latest updates, my hardware is:
i5-6600k running at 4.4GHZ and 1.3v
Samsung 850 EVO 250GB SSD
8GB RAM
Z170-HD3
RX 480 4GB
I'm on windows 10 1703
My boot time has...