Being a PC user, you must expect to come face-to-face with seemingly inexplicable behavior. Over the last two decades, I’ve encountered and fixed multiple issues with my PCs. One way or the other, I was able to either pinpoint the root cause and eliminate it, or at least get rid of the issue if I couldn’t figure out the actual reason behind it. The fixes to the issues listed below, however, have managed to elude me over the last three years. These problems come and go as they please, and I’m no closer to solving them than I was 3 years ago.