The computer is probably number one place where we spend the most time. We usually use it for many things, including work, study, playing games, watching movies, and socializing with friends. It is essential to keep PC workplace comfortable and attractive. The computer itself needs refreshing from time to time. When it is still relatively new, I mean up to few years old; you may want to upgrade some parts like HDD, RAM, and Video card. They can revive PC to new performance level, but if you are looking for a more drastic change in performance, then you should think about getting new PC. But in most cases, simple upgrade gives a better feeling. Simple replacement of the magnetic hard drive with SSD will give you noticeable improvement. I think this step should be first on your list. You will get much faster boot time, faster loading applications, and quieter work. SSD, in my opinion, is also more reliable because there are no mechanical moving parts that can fail.