Nowadays, we need computer usage in our daily life. Each sector is getting numerous advantages with the help of computers. Due to this reason, there has been continuous increase in the numbers of PC users. Technically, we are much dependant on electronic gadgets. There has been a revolution in online & offline business, banking sector, education, medical field etc. due to computer sciences. With the help of technological developments, humans are still exploring the IT field. In the modern world, computer systems have become a need. If there is a software or hardware fault in your PC, it will surely cause disruptions in your day-to-day work. Any system issue can obstruct your daily work and it will affect negatively on your productivity. You can achieve the objective of optimal functionality through the regular maintenance of your system. The regular maintenance comprises of upgrading the operating system as well as the protection of your PC against the late...