PC performance is directly related to the efficacy of the Registry in your system. Every operating system has a Registry and it is accountable to facilitate all the tasks, functions and applications that a system is supposed to run. The tasks and functions include everything, right from boots to running any type of program, software, browsing the internet or making changes to your system. If the registry is malfunctioning or not in its best state, then pc performance would be hampered!
The registry needs to be cleaned up regularly, maintained, scanned for errors and the registry errors must be fixed in a timely manner before one or more of these factors start to take a toll on the system and adversely impact the pc performance.
You can easily fix registry errors with the help of software these days. You can also choose to manually check out the registry and delete all files that you think are unnecessary and causing registry errors. To do this however, you would need some level of expertise and awareness of registry files. You can also choose to restore the system settings to an earlier date when the pc performance was desirably fast and responsive.
The reason why registry affects pc performance is because all the files that get stacked up in the registry over time, start interfering with the normal functioning of the pc. As you keep using your computer, all types of files get stored up as entries in your system registry. Some of these files get stored incompletely. Some are already corrupt files, some are additional scripts which have no utility and some are useful files but which get corrupt over time because of the other files. When the system is functional, many scripts are run by the registry in the background which is needed to facilitate the task you want the system to perform. While running the useful scripts, the registry also runs the useless files and programs which hinder pc performance.
Steadily, you would get registry errors leading to System 32 errors and before you know it; your system would start crashing for no specific reason and without warning. The solution is simple. You simply have to delete the unwanted files or restore your registry to a known past setting that was free of all the fuss. You should have the practice of scanning and cleansing the registry regularly for optimum pc performance.