The company's information system is key to ensuring its proper functioning and competitiveness. However, a study conducted by the firm Optimum revealed that 56% of the IT budget of companies would be allocated to the resolution of incidents. Entrusting the management and maintenance of the IS is done regardless of its complexity. We will see here why it is important to have an operational IT infrastructure and the benefits of outsourced maintenance, not without having reviewed the three levels of IT maintenance. The Challenges of an Operational Computer Park A major malfunction, with or without business interruption, can have serious consequences on your business. An operational computer park involves preventing and correcting the risks of both hardware and software incidents, ensuring maximum "IS availability," and improving security. Concerning the most common computer problems, an Easypanel study has shown that faulty or obsolete equipment is the cause of appro