Dikushin/Getty Images In the modern world, a personal computer is one of the most vital devices you can own, serving as a nexus for both your professional work and personal entertainment. PCs and their peripherals, including monitors and keyboards, may seem fairly robust, but they're actually quite vulnerable to various small problems that could, as a whole, impact your overall usage of them. As a PC owner, it's on you to maintain a comprehensive cleaning and upkeep regimen, from regularly dusting the vents to clearing out old, unnecessary files. Keeping your PC in top shape isn't just about avoiding sketchy websites or not dropping crumbs into your keyboard, though those are both important. Both your PC's physical and digital elements endure constant rigors, like dust in the vents and large files slowing down processes, which together can cause your PC's proverbial clock to run out faster than it should.…