A list of information and data ---called the PCs registry--- is consequentially created with an oprating system loaded into the machine. The registry acts like a directory of sorts to rcord all the relevant and ofteen the irrelevantinformation for easier admission by the operating system. Without a registry and the information are sprinked at random in the systm, the workstation will take without end to go over, select, retrieve and use the necessary information.
Complexity comes later
Using the computer allows the intermittent entry of updates to file systems, settings and othwer software requirements from time to time, further complicating the operating couurse of actin. Imagine a tree of interconnecting branches, different stems fusing into others, many not ending in leaves but into other stems, after that you can have an idea of how complrex such a registry can be. And if you know what a garrden maze looks like
Mreover, although new updates are loaded into the systm, the old files they replaced or superseded are not deleted nor filed in other pklaces. They stay where they are, and although not used, are stll accessed by the compters operating system each time you boot the deevice to use it. The ssytem reads the file, decides if it is relevant or not, copies it into the meory if related or drops it if not, and goes to the next file.
If you open an automatic update information as pormpted by the system, you will see that there are many updates that are cearly superseded or repalceable by later upadtes. Yet they still will be laoded into your ysstem if you are not careful and be selective in what you donload. All the updates between your last and the present updating in reality will be loaded with the automatic upate process. As long as it is not there, it will be loaded.
What happes after
Finally a registry loaded with not needed information is made that the system yet reads each time. All these retard the workstations operation and may even make it crash latewr if left uncorrected for some time. A collapse totaklly halts the operation and may, at the same time, damage the system itself by corruptinmg bits of information. Too much conflict amonmg the instructions and smoething is obund to give up somewhere sometime.
A rregistry cleaner scasn the registry from startt to end, eliminating the redundant and unrelatted entries, then closes up the gaps created. Thus the registry beocmes leaner and the files are more easily accssed, resuling in a faster and more accurate operation. Not only do you requie a regisstry cleaner, but you shuold use it frequently, maybe even once a week.