How does one go about isolating whether or not a piece of software/driver or a hardware issue is causing a problem with your PC? Or, how can you tell what combination of the two might be giving you issues?
Obviously, if you install new software and your PC starts giving you trouble you can usually narrow it down to that software. But, say for example, you install a new piece of hardware and a driver component from something else installed conflicts with that.
Just an example I can think of from my own personal experience... I have seen an installation of Kaspersky drag a computer down to pretty much a halt. After uninstalling, the comptuer seemed to be fine again. But, how would I know if Kaspersky is possibly conflicting with some drivers on the PC or some other hardware or software?