Question 100% disk usage HELP

Jul 30, 2024
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I’ve been dealing with 100% disk usage from my SATA SSD. It’s been causing extreme slowness on my pc that I can’t even trouble shoot it thoroughly without it causing a BSOD. I can’t check event viewer because everything becomes unresponsive to me as soon as I boot my PC.

What I have tried doing is:
Replacing the SSD. I have warranty, so I got a new one.
Changing the SATA cable and tried to put it in different ports
/SFC scannow in cmd as well as /chkdsk
Rebuilding my index
disabling windows search
disabling superfetch
reinstalling my OS with a USB pen drive using the media creation tool

I don’t understand why and how this is happening. It’s not a malware issue since this is a fresh installation of windows, there is nothing installed on my pc not even an AV. BSOD error message is critical process died. Sometimes after a blue screen it boots me into BIOS instead of windows and says there is no bootable device. (Usually I just restart the pc until it’s recognized)

Specs:
Asus z170-E Motherboard
16 gb crucial ram (2x8 GB 3200 MHZ)
RX 6500 XT GPU
I5-6500 CPU
600W PSU
1 TB SSD (blue western digital)