Being buried away in technical debugging tools is 'silent' for 99.9% of users. A common task that repair shops do to "fix a slow PC" is clean dust from the fan

Being buried away in technical debugging tools is 'silent' for 99.9% of users. A common task that repair shops do to "fix a slow PC" is clean dust from the fans and heatsinks to reduce throttling. Users don't know or understand that this is happening, they just know their system is slow.