Reasons and purposes of reloading the operating system

Reinstalling the operating system is a tedious task, so which situations require you to reinstall the operating system? In fact, we can roughly divide the reload system into the following two situations:

1. Active Reload System

Active Reload system, users want to experience a new version of the operating system, their own initiative to reinstall the system, for example, users are using the Windows XP system, now want to use the Windows7 system, you need to reinstall the system to do.

2. Passive Reload System

For a variety of reasons, such as user misuse or virus, Trojan program damage, the system of important documents damaged, resulting in errors and even crashes, can not start the computer, can only reload the system can be solved. In some cases, although the system is running normally, but not a regular occurrence of a mistake, or the system runs slowly, and time-consuming and laborious to look for reasons, but also to solve the problem of reloading system.