The Windows registry is a complex structure that contains basic information about installed applications, and, of course, the main system processes. Accordingly, the fixation of all changes, user actions, the intervention of various software applications in the health of the system, and so on.
You need to start editing the registry by entering it using the following combination. Click start, then click "execute". There we type the regedit command and click OK. The Windows registry is at your disposal.
However, it should be noted right away that this is a very complex hierarchical directory structure. If you are not sure enough what exactly you want to edit there, or you are doing it on a not quite competent recommendation, it is better not to do it. In order to avoid catastrophic consequences for the system.
A more efficient way to edit the Windows registry is with special applications. The most suitable program for this purpose is the free Auslogics Registry Cleaner. The utility automatically cleans up unnecessary and unused registry entries. You need to download only from official sources. For example, the site of the developer Auslogics: