Operating System is the spinal cord of the computer. If the Operating System (OS) is not there or not functioning properly then the computer/Laptop is just a dead box without life. Operating System act as the interface to connect the hardware and software to function properly.
There are a lot of many versions of operating systems available in the market, ranging from the earliest DOS to the most recent Windows 10 for Windows and similarly IOS for Apple products. Due to the availability of these operating system, there is a need to get assistance on a regular basis from expert technicians.