I just had to fix up a computer that was in the studio for a while putting out 3D video to a 3D monitor and TV. It had an i7 860 and a GTX 260. The 260 had its PCI ins powered by a single molex converter each, the CPU 8-pin was only a four pin, the GPU wasn't screwed to the expansion slots, so all the weight of the GPU was causing visible stress marks in the motherboard's PCB, the PSU was some OEM 300w with no PCI connectors, there were three different antivirus programs installed, and the CATALYST MOTHER****ING CONTROL CENTER! The ATi Catalyst control center, by the way, not the AMD one. I installed malwarebytes and it picked up about a dozen major viruses. I mean Christ it was a real mess. So what are the biggest messes you've had to fix for a relative/client/acquaintance?