Life Lesson—Start Afresh!
Ah, the most ingenious of them all. The idea of shutting down your PC or restarting it always works, especially when you are not in the mood to scavenge programming books in order to explore (or invent, in case of the tech-savvy individuals) more advanced (and unnecessary) options. Oftentimes you might not be aware of the apps or system features running in the background, and these tend to take a toll on system memory, especially if you are doing something intensive.
Shutting down not only closes these background processes but also gives your system the opportunity to look for a window (pun intended) to kill unnecessary apps. You will be surprised to see how smoothly your system starts running after a quick reboot.