Software is the most important tool that links and manages software and hardware together. A lot of software is installed on a personal computer and many people get accustomed to using software on the personal computer. However, many people do not know that they are using whether licensed software or unlicensed software. A lot of unlicensed software is largely used on the personal computer and unlicensed software is becoming more prevalent on the personal computer around the world.
Firstly, Many people do not pay attention to read license agreement, which provided by software industries during an installation time due to lack of awareness. 
Secondly, it is that unlicensed software is easily downloaded from the internet and it is more attractive than purchasing licensed software rightfully. In the other words, there are a lot of unlicensed software and downloadable unlicensed software source available on the internet without spending money. 
Lastly, it is that a price of licensed software is expensive and unworthy to purchase licensed software. Many people may be using licensed software unworthily and unconditionally as the below table is displayed the price of licensed software.