Computers are the important part of our lives. We always need them to work properly. This is the reason why we need to protect them from annoying errors. Most commonly these errors are caused due to errors that get encountered in windows registry. These errors cannot be avoided as they can be caused by simple actions such as installation or deletion of software. If such problems are not fixed the computer will start to work slower and slower over time and you will need to wait for longer time for simple tasks to perform.  
Windows Registry is a hierarchical database that is used for storing setting options of MS Window operating system. If the Windows registry has any blockage or corruption leads to whole system to slow down. 

What exactly is the Windows registry?

Windows registry is used to managing a huge number of operations very efficiently at once; registry files are the most important part of any computer operating system because without registry keys operating system can’t manage the distribution of hardware and other things.  In the registry database all the information about the settings, computer hardware, software, and user profiles. By using all of these information any operating system can manage and execute more than one operation at the same time. This database store all the information that occurs on it, all the activity of the user is recorded in the registry files.