Windows 10: My computer shuts down to a strange state of stand-by

I am just explaining how all desktop power supply's work. There will always be a standby power (+5V) and a LED light ON,
unless you turn OFF the power to the power supply!

 

Good news, guys. I fixed it! All I had to do was reset the CMOS data using the onboard jumper. Then, I set up the BIOS for the most crucial things (e.g. setting SATA mode to AHCI, disabling unnecessary onboard devices, or setting the proper boot device). Now, when I shut down my PC, none of my USB devices work afterward. I guess I must've messed up some BIOS settings. I was also pointing out the wrong suspects. Nevertheless, I want to thank you all for your concern and help. Even though your pieces of advice didn't help me with my problem, I did learn valuable things. Thanks again. Problem SOLVED! *Biggrin

 

That's good news, rzepek2pl. Good thinking! *Thumbs

I just learned something as well. *Smile

 

It was an accident, rather than good thinking. I was goofing around with the chassis cables and I came across the CMOS jumper. I thought to myself, "What the hell, I might as well try." It's that kind of dumb ideas that helps the most. *Wink

 

LOL! Yes, sometimes it's that way. *Smile

 

Quick edit: Alongside the reset CMOS, I still need to have the Fast Startup disabled (I re-enabled it after I thought I'd succeeded, the problem reoccurred). Fortunately, the difference is little to none, so I don't mind it being off.

 

Ok, thanks. Will remember that too.