机器会碰碰就坏的 -- my 2yr old son is really good at

destroying Windows2000 and XP. (I was amazed how my computer behaved after he touched the keyboard.)

Buying a new computer is the key. Also, should get Chinese operating system for your father-in-law, unless he knows English. It is cruel to ask a 70+-know-no-English person to use English operating system.