The pc was so expensive that I just can’t even think about hammering it 
No, because:
PEBKAC
or
PICNIC
Problem Exists Between Keyboard and Chair
or
Problem In Chair Not In Computer
Nuff said.
@nixCraft I want to beat sense into my fellow men with blunt things far more often than I want to beat my computer.
At least when my computer behaves unexpectedly, it’s an exception and not the rule!
@nixCraft Not since I switched from Windows to Linux because if it misbehaves and it bothers me enough I can fix it or at least report a usable bug report to the right project.
Besides it's hard to hit the software without damaging the probably innocent hardware.