Computer software installation and maintenance; Consultation services in the fields of selection, implementation and use of computer hardware and software systems for others; Installation and maintenance of computer software; Installation of computer software; Installation, maintenance and repair of cell phone related software; Installation, maintenance and repair of computer software; Installation, maintenance and repair of software for computer systems; Installation, repair and maintenance of computer software; Maintenance and updating of computer software; Maintenance and upgrading of computer software; Maintenance of computer software; Maintenance of computer software relating to computer security and prevention of computer risks; Maintenance of software for Internet access; Periodic upgrading of computer software for others; Preparation, update, installation and maintenance of computer software; Repair of computer software; Repair of software; Services for maintenance of computer software; Services for updating computer software; Technical support services, namely, troubleshooting in the nature of diagnosing computer hardware and software problems; Technical support services, namely, troubleshooting of computer software problems; Up-dating of computer software; Update of computer software; Updating and maintenance of computer software; Updating of computer software for others; Updating of computer software relating to computer security and prevention of computer risks