Hi all.
So, I have this weird problem: usually, my PC boot time used to be - from power to desktop - 5 to 10 seconds long at maximum, thanks to my Samsung EVO SSD. In the past 2 months, I experienced some occasional long boot time (at least 10 minutes, but everytime below 15), that become more and more frequently. I was running Win 10 Pro 1703, latest updates, with Bitdefender Free. I noticed, after switching to avast! Free Antivirus, that these long boots became the rule: now they show everytime I power on my PC.
In detail, the sequence is this: I start the PC, MSI Logo don't show up (FastBoot enabled), than the computer stucks on Win10 logo, with the loading animation perfectly spinning all the time without any hiccups. I notice that my USB devices (mouse, keyboard, XONE controller) are without power during this time. After 10 minutes or more, I hear my hard disks spinning, the HDD LED on, and power returns on USB devices. PC goes to desktop in less than 5 seconds, and it's working as usual. Basically, a boot phase that used to last 1 or 2 seconds (USB devices powered off and then turned on), now lasts too long, but after that PC works perfectly fine.
I already tried to power on my PC without any peripheral attached, but the problem showed up the same. TL;DR: extremely long Win10 logo boot screen, USB devices are powered off during this process that lasts at least 10 minutes, than they light up, HDDs start spinning and PC goes to desktop as usual.
My rig below.