January
People may do spring cleaning, but in January, the bulk of cleaning can be focused on computers and their networking systems. This is the time to clear out old files, empty trash and ensure the system is running as efficiently as ever.
Source: www.bitdefender.com/blog/hotforsecurity/celebrate-national-clean-up-your-computer-month-with-these-six-easy-tips/
Most people haven't a clue about running a regular maintenance schedule on their computers. Retailers don't have the incentive to help since they are in the business of selling new products. However, the retailers that do help consumers are the ones that are remembered when the time comes to purchase new units. The average lifespan of a computer is now 4-5 years. Suggest your retailers give clean-up tips in their ads during National Computer Clean Up Month.