I've been working in IT in some form or another for the past 20 years. During that time I have done extensive work in the area of desktop support. That includes a lot of malware removal, software installation, hardware and software maintenance, and disaster recovery.
For the past 15 years a major focus of mine has been networking, with a heavy focus on Cisco certification.
I have also done quite a bit of server related work with both Windows server and VMWare.