Er... no. Ensure any hardware faults are rectified and if replacing the HDD, reinstall the OS and drivers.
Not "When I press SHIFT ALT CTRL F3 on a Tuesday, my mouse cursor disappears, can you fix that?" or "Can you install Sage?" or "When little Johnny gets to level 12 on <random game> a pink pixel appears in the top right-hand corner of the screen for a split second."
(Spends the next four hours dicking about with DirectX, gets home at 20.00 if lucky)