A network administrator, network analyst or network engineer is a person responsible for the maintenance of computer hardware and software that comprises a computer network. This normally includes deploying, configuring, maintaining and monitoring active network equipment. wikipedia.org

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. wikipedia.org

To prevent email spam both end users and administrators of email systems use various anti-spam techniques. Some of these techniques may be embedded in products, services and software to ease the burden on users and administrators. wikipedia.org

Customer support is a range of customer services to assist customers in making cost effective and correct use of a product. It includes assistance in planning, installation, training, trouble shooting, maintenance, upgrading, and disposal of a product. wikipedia.org

Technical support or tech support refers to a range of services by which enterprises provide assistance to users of technology products such as mobile phones, televisions, computers, software products or other electronic or mechanical goods.

Hardware troubleshooting is troubleshooting applied to computer hardware. Troubleshooting is a form of problem solving, often applied to repair failed products or processes. wikipedia.org

Microsoft Windows is a series of operating systems produced by Microsoft. wikipedia.org

Windows 7 is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs. wikipedia.org

Installation and troubleshooting of computer hardware.

A computer repair technician is a person who repairs and maintains computers and servers. The technician's responsibilities may extend to include building or configuring new hardware, installing and updating software packages, and creating and maintaining computer networks. wikipedia.org