Windows 10: Predator G3620, stuck in Acer logo, and I can neither access BIOS nor the Windows Boot Manager

My Acer Predator G3620 from 2013 upgraded from Windows 8 to Windows 10 suddenly, from early April, will start no more. As soon as the Acer logo shows on the screen, the PC stalls – and not even one single beep signal can be heard. Now I can neither access BIOS nor the Windows Boot Manager – no text at all at the bottom of the screen.I need to attach a USB installation disk, start again and then most often I can change the boot order in BIOS to boot from there. After that and luckily just after1 short beep signal it works.I suspect troubles with my Windows Boot Manager. Following many descr

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Stuck on Acer logo on boot

No I’m not stuck on the BSOD I’m stuck on the Acer boot logo.

Thanks,

 

How do I enter BIOS setup - Acer Computer

User guide says to press F2 when the ACER logo appears. The ACER logo doesn't appear at boot. I've tried pressing F2 anyway but no biios screen. Also tried F12, F10, and Del.at boot. Part of my sysinfo is:

• System Name ACER_DESKTOP
• System Manufacturer Acer
• System Model Predator G3-605
• System Type x64-based PC System SKU
• Processor Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz, 3601 Mhz, 4 Core(s), 8 Logical Processor(s)
• BIOS Version/Date American Megatrends Inc. P11-C1, 9/12/2014
• SMBIOS Version 2.7 Embedded Controller Version 255.255
• BIOS Mode UEFI
• BaseBoard Manufacturer
• Acer BaseBoard Model Not Available BaseBoard Name Base Board Platform Role Desktop

 

Windows stuck in automatic repair; Can't access BIOS/ boot menu

I've changed the boot order through both BIOS and the boot manager, as my original post stated. Neither did anything, but both were functional in the past. Neither listed the windows boot manager, either. Previously, it would boot just as expected whenever
other media was set as the first option, so I'm pretty sure there are no issues there.

As my original post suggested, I've already tried out the steps you gave. I've gone through all the options listed in the boot menu, UEFI or not.

My BIOS and boot menu settings were at their defaults when all of this started, so that's been tried already, if those are what you're referring to.