Windows struggles to shut down - could this be a hardware fault on the motherboard?

[NewbieOverclocker]

I have a PC running Windows 10 with an AMD Ryzen 5 1600x, which is about 6 years old. Only the motherboard, a Gigabyte, is newer, changed 2 years ago as the old one had died.

For a few days:

• the PC has been struggling to shut down: start - shut down and... either nothing happens, or the shutdown starts many minutes later (even if I had already closed all my programs)
• and the bootup takes much longer than usual, even if Windows is on an SSD drive

The longer boot up time makes me think of some issue with the SSD drive, but could the issues shutting down be an early sign of some hardware fault with the motherboard?

Basically I wonder if it's just one of those computer tantrums that may well go away, or if I should replace it now before the system fails again, and I'm left without PC for a couple of weeks (getting another custom build will always take 5-7 working days).

I have enabled and disabled the fast startup options in the bios and in the Windows settings, but I haven't noticed any changes.

 

[NewbieOverclocker]

No changes at all, neither to the hardware nor to the drivers

If I open the event viewer I see:
in system, many warnings that "The IO operation at logical block address 0x0 for Disk 4 (PDO name: \Device\00000063) was retried". I also see it for disk3