Ah dead and cheap PCs.
My father continues to buy them and they chug along for a short while, then get 'slow'.
I don't trouble shoot them anymore. It is not worth the effort.

Two computers just came across my desk a few months ago. Both had failing motherboards. It was a good thing i had enough components from two other units to swap out stuff and figure out all the faulty parts. It can be a lengthy process otherwise.

"Those who preach the myths of audio are ignorant of truth."