I build and sell custom computers and include parts installation, windows installed, testing, and all drivers updated. All pcs have a 60-day warranty(on top of the manufacture warranty), include free tech support and help with future upgrades. I also offering diagnostic, repair and upgrade services starting at $75. This includes system cleaning, virus removal, windows installation, password removal, parts install, case swaps, and more. Message me for details. I have been doing this as a business for over 4 years in San Antonio. Let me know if you have any questions.