COMPUTER MAINTENANCE EVERY TWO MONTHS

My computer has been unattended by a technician for about two (2) months. I guess its time for attention so this coming Saturday i will ask the technician in my workplace to come and just check on my softwares and hardwares, too. Just a security protection and so as to lengthen the span of life of the computer. Technician says every two months a computer must have to be maintained. How about you guys, do you allocate a budget to clean on your computer, and upgrade when necessary?